EduSahara™ Assignment
Name : Linear Equations Concepts
Chapter : Linear Equations in two Variables
Grade : CBSE Grade IX
License : Non Commercial Use
Question 1
1.
Which of the following is a linear equation in two variable?
  • (i)
    (
    9
    x
    +
    3
    )
    =
    0
  • (ii)
    (
    6
    x
    +
    3
    y
    +
    9
    z
    +
    2
    )
    =
    0
  • (iii)
    (
    35
    x
    2
     
    +
    20
    x
    y
    4
    x
    15
    y
    2
     
    34
    y
    15
    )
    =
    0
  • (iv)
    (
    8
    x
    +
    y
    +
    4
    )
    =
    0
  • (v)
    (
    32
    x
    2
     
    18
    )
    =
    0
Question 2
2.
Which of the following is a linear equation in two variable?
  • (i)
    (
    24
    x
    2
     
    +
    48
    x
    24
    )
    =
    (
    4
    x
    +
    1
    )
  • (ii)
    (
    6
    x
    +
    6
    y
    +
    5
    z
    +
    9
    )
    =
    (
    6
    x
    2
    y
    +
    2
    z
    2
    )
  • (iii)
    (
    9
    x
    2
     
    21
    x
    y
    9
    x
    12
    y
    2
     
    4
    y
    +
    40
    )
    =
    0
  • (iv)
    (
    3
    x
    6
    )
    =
    (
    5
    x
    +
    4
    )
  • (v)
    (
    5
    x
    7
    y
    )
    =
    (
    7
    x
    +
    2
    y
    4
    )
Question 3
3.
    • The linear equation
    • (
      3
      x
      +
      5
      y
      7
      )
      =
      (
      8
      x
      +
      2
      y
      +
      7
      )
    • is equivalent to
  • (i)
    (
    3
    x
    +
    5
    y
    7
    )
    =
    (
    8
    x
    y
    +
    7
    )
  • (ii)
    (
    6
    x
    +
    3
    y
    14
    )
    =
    0
  • (iii)
    (
    5
    x
    +
    3
    y
    14
    )
    =
    0
  • (iv)
    (
    4
    x
    +
    3
    y
    14
    )
    =
    0
  • (v)
    (
    3
    x
    +
    5
    y
    7
    )
    =
    (
    8
    x
    +
    5
    y
    +
    7
    )
Question 4
4.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      2
      x
      4
      y
      6
      )
      =
      (
      9
      x
      y
      +
      8
      )
    • is
  • (i)
    x
    =
    (
    3

    7
    y
    2
    )
  • (ii)
    x
    =
    (
    3

    7
    y
    )
  • (iii)
    x
    =
    (
    1

    3
    y
    2
    )
  • (iv)
    x
    =
    (
    3

    7
    y
    4
    )
  • (v)
    x
    =
    (
    3

    5
    y
    2
    )
Question 5
5.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      7
      x
      4
      y
      6
      )
      =
      (
      5
      x
      +
      2
      y
      +
      6
      )
    • is
  • (i)
    y
    =
    (
    2
    x
    +
    1
    )
  • (ii)
    y
    =
    (
    2
    x
    4
    )
  • (iii)
    y
    =
    (
    x
    2
    )
  • (iv)
    y
    =
    (
    3
    x
    2
    )
  • (v)
    y
    =
    (
    2
    x
    2
    )
Question 6
6.
    • Find the set of points satisfying the equation
    • (
      12
      x
      11
      y
      16
      )
      =
      0
  • (i)
    • (
      (
      2
      )
      ,
      8

      11
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      4

      11
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      38

      11
      )
      )
    • ,
    • (
      1
      ,
      (
      28

      11
      )
      )
    • ,
    • (
      2
      ,
      (
      40

      11
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      8

      11
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      4

      11
      )
      )
    • ,
    • (
      1
      ,
      (
      27

      11
      )
      )
    • ,
    • (
      1
      ,
      (
      28

      11
      )
      )
    • ,
    • (
      2
      ,
      (
      40

      11
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      8

      11
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      4

      11
      )
      )
    • ,
    • (
      0
      ,
      (
      16

      11
      )
      )
    • ,
    • (
      1
      ,
      (
      28

      11
      )
      )
    • ,
    • (
      2
      ,
      (
      40

      11
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      8

      11
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      4

      11
      )
      )
    • ,
    • (
      0
      ,
      (
      16

      11
      )
      )
    • ,
    • (
      0
      ,
      (
      17

      11
      )
      )
    • ,
    • (
      2
      ,
      (
      40

      11
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      8

      11
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      4

      11
      )
      )
    • ,
    • (
      0
      ,
      (
      16

      11
      )
      )
    • ,
    • (
      1
      ,
      (
      28

      11
      )
      )
    • ,
    • (
      4
      ,
      (
      18

      11
      )
      )
Question 7
7.
    • Find the set of points satisfying the equation
    • y
      =
      (
      15

      4
      x
      +
      103

      4
      )
  • (i)
    • (
      (
      2
      )
      ,
      73

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      22
      )
    • ,
    • (
      0
      ,
      103

      4
      )
    • ,
    • (
      0
      ,
      61

      2
      )
    • ,
    • (
      2
      ,
      133

      4
      )
  • (ii)
    • (
      (
      2
      )
      ,
      73

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      22
      )
    • ,
    • (
      1
      ,
      99

      4
      )
    • ,
    • (
      1
      ,
      59

      2
      )
    • ,
    • (
      2
      ,
      133

      4
      )
  • (iii)
    • (
      (
      2
      )
      ,
      73

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      22
      )
    • ,
    • (
      (
      2
      )
      ,
      95

      4
      )
    • ,
    • (
      1
      ,
      59

      2
      )
    • ,
    • (
      2
      ,
      133

      4
      )
  • (iv)
    • (
      (
      2
      )
      ,
      73

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      22
      )
    • ,
    • (
      0
      ,
      103

      4
      )
    • ,
    • (
      1
      ,
      59

      2
      )
    • ,
    • (
      2
      ,
      133

      4
      )
  • (v)
    • (
      (
      2
      )
      ,
      73

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      22
      )
    • ,
    • (
      0
      ,
      103

      4
      )
    • ,
    • (
      1
      ,
      59

      2
      )
    • ,
    • (
      4
      ,
      141

      4
      )
Question 8
8.
    • Find the set of points satisfying the equation
    • x
      =
      (
      12

      17
      y
      40

      17
      )
  • (i)
    • (
      (
      2
      )
      ,
      (
      1

      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      23

      12
      )
      )
    • ,
    • (
      0
      ,
      (
      10

      3
      )
      )
    • ,
    • (
      1
      ,
      (
      19

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      37

      6
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      (
      1

      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      23

      12
      )
      )
    • ,
    • (
      0
      ,
      (
      10

      3
      )
      )
    • ,
    • (
      0
      ,
      (
      15

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      37

      6
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      (
      1

      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      23

      12
      )
      )
    • ,
    • (
      1
      ,
      (
      13

      3
      )
      )
    • ,
    • (
      1
      ,
      (
      19

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      37

      6
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      (
      1

      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      23

      12
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      16

      3
      )
      )
    • ,
    • (
      1
      ,
      (
      19

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      37

      6
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      (
      1

      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      23

      12
      )
      )
    • ,
    • (
      0
      ,
      (
      10

      3
      )
      )
    • ,
    • (
      1
      ,
      (
      19

      4
      )
      )
    • ,
    • (
      4
      ,
      (
      25

      6
      )
      )
Question 9
9.
    • Find the set of points satisfying the equation
    • y
      =
      (
      2

      3
      x
      )
  • (i)
    • (
      (
      2
      )
      ,
      4

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      2

      3
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      1
      ,
      (
      2

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      4

      3
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      4

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      2

      3
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      (
      2

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      4

      3
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      4

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      2

      3
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      (
      2

      3
      )
      )
    • ,
    • (
      4
      ,
      2

      3
      )
  • (iv)
    • (
      (
      2
      )
      ,
      4

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      2

      3
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      0
      ,
      1

      3
      )
    • ,
    • (
      2
      ,
      (
      4

      3
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      4

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      2

      3
      )
    • ,
    • (
      1
      ,
      (
      1
      )
      )
    • ,
    • (
      1
      ,
      (
      2

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      4

      3
      )
      )
Question 10
10.
    • Find the set of points satisfying the equation
    • (
      15
      x
      +
      8
      y
      5
      )
      =
      0
  • (i)
    • (
      (
      2
      )
      ,
      35

      8
      )
    • ,
    • (
      (
      1
      )
      ,
      5

      2
      )
    • ,
    • (
      0
      ,
      5

      8
      )
    • ,
    • (
      0
      ,
      (
      1

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      25

      8
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      35

      8
      )
    • ,
    • (
      (
      1
      )
      ,
      5

      2
      )
    • ,
    • (
      0
      ,
      5

      8
      )
    • ,
    • (
      1
      ,
      (
      5

      4
      )
      )
    • ,
    • (
      4
      ,
      (
      9

      8
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      35

      8
      )
    • ,
    • (
      (
      1
      )
      ,
      5

      2
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      11

      8
      )
      )
    • ,
    • (
      1
      ,
      (
      5

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      25

      8
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      35

      8
      )
    • ,
    • (
      (
      1
      )
      ,
      5

      2
      )
    • ,
    • (
      1
      ,
      (
      3

      8
      )
      )
    • ,
    • (
      1
      ,
      (
      5

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      25

      8
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      35

      8
      )
    • ,
    • (
      (
      1
      )
      ,
      5

      2
      )
    • ,
    • (
      0
      ,
      5

      8
      )
    • ,
    • (
      1
      ,
      (
      5

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      25

      8
      )
      )
Question 11
11.
    • Find the set of points satisfying the equation
    • y
      =
      (
      2
      )
  • (i)
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      1
      ,
      (
      3
      )
      )
    • ,
    • (
      1
      ,
      (
      2
      )
      )
    • ,
    • (
      2
      ,
      (
      2
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      0
      ,
      (
      2
      )
      )
    • ,
    • (
      1
      ,
      (
      2
      )
      )
    • ,
    • (
      4
      ,
      0
      )
  • (iii)
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      4
      )
      )
    • ,
    • (
      1
      ,
      (
      2
      )
      )
    • ,
    • (
      2
      ,
      (
      2
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      0
      ,
      (
      2
      )
      )
    • ,
    • (
      0
      ,
      (
      1
      )
      )
    • ,
    • (
      2
      ,
      (
      2
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      0
      ,
      (
      2
      )
      )
    • ,
    • (
      1
      ,
      (
      2
      )
      )
    • ,
    • (
      2
      ,
      (
      2
      )
      )
Question 12
12.
    • Find the set of points satisfying the equation
    • x
      =
      9
  • (i)
    • (
      9
      ,
      (
      2
      )
      )
    • ,
    • (
      9
      ,
      (
      1
      )
      )
    • ,
    • (
      7
      ,
      (
      2
      )
      )
    • ,
    • (
      9
      ,
      1
      )
    • ,
    • (
      9
      ,
      2
      )
  • (ii)
    • (
      9
      ,
      (
      2
      )
      )
    • ,
    • (
      9
      ,
      (
      1
      )
      )
    • ,
    • (
      10
      ,
      (
      1
      )
      )
    • ,
    • (
      9
      ,
      1
      )
    • ,
    • (
      9
      ,
      2
      )
  • (iii)
    • (
      9
      ,
      (
      2
      )
      )
    • ,
    • (
      9
      ,
      (
      1
      )
      )
    • ,
    • (
      9
      ,
      0
      )
    • ,
    • (
      9
      ,
      1
      )
    • ,
    • (
      11
      ,
      4
      )
  • (iv)
    • (
      9
      ,
      (
      2
      )
      )
    • ,
    • (
      9
      ,
      (
      1
      )
      )
    • ,
    • (
      9
      ,
      0
      )
    • ,
    • (
      8
      ,
      2
      )
    • ,
    • (
      9
      ,
      2
      )
  • (v)
    • (
      9
      ,
      (
      2
      )
      )
    • ,
    • (
      9
      ,
      (
      1
      )
      )
    • ,
    • (
      9
      ,
      0
      )
    • ,
    • (
      9
      ,
      1
      )
    • ,
    • (
      9
      ,
      2
      )
Question 13
13.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        4

        5
        )
      • ,
      • (
        (
        1
        )
        ,
        (
        9

        5
        )
        )
      • ,
      • (
        0
        ,
        (
        22

        5
        )
        )
      • ,
      • (
        1
        ,
        (
        7
        )
        )
      • ,
      • (
        2
        ,
        (
        48

        5
        )
        )
    • ?
  • (i)
    (
    2
    x
    +
    5
    y
    1
    )
    =
    0
  • (ii)
    y
    =
    3
  • (iii)
    y
    =
    (
    13

    5
    x
    76

    5
    )
  • (iv)
    x
    =
    (
    13

    5
    y
    74

    5
    )
  • (v)
    (
    13
    x
    5
    y
    22
    )
    =
    0
Question 14
14.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        0
        )
      • ,
      • (
        (
        1
        )
        ,
        (
        1

        2
        )
        )
      • ,
      • (
        0
        ,
        (
        1
        )
        )
      • ,
      • (
        1
        ,
        (
        3

        2
        )
        )
      • ,
      • (
        2
        ,
        (
        2
        )
        )
    • ?
  • (i)
    x
    =
    (
    1

    2
    y
    +
    3
    )
  • (ii)
    y
    =
    (
    2
    )
  • (iii)
    y
    =
    (
    1

    2
    x
    1
    )
  • (iv)
    (
    9
    x
    +
    5
    y
    3
    )
    =
    0
  • (v)
    x
    =
    2
Question 15
15.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        1

        1
        )
      • ,
      • (
        (
        1
        )
        ,
        9

        14
        )
      • ,
      • (
        0
        ,
        2

        7
        )
      • ,
      • (
        1
        ,
        (
        1

        14
        )
        )
      • ,
      • (
        2
        ,
        (
        3

        7
        )
        )
    • ?
  • (i)
    (
    6
    x
    10
    y
    +
    10
    )
    =
    0
  • (ii)
    x
    =
    (
    3

    5
    y
    +
    22

    5
    )
  • (iii)
    x
    =
    8
  • (iv)
    y
    =
    (
    3

    5
    x
    +
    54

    5
    )
  • (v)
    (
    5
    x
    +
    14
    y
    4
    )
    =
    0
Question 16
16.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        0
        )
      • ,
      • (
        (
        1
        )
        ,
        0
        )
      • ,
      • (
        0
        ,
        0
        )
      • ,
      • (
        1
        ,
        0
        )
      • ,
      • (
        2
        ,
        0
        )
    • ?
  • (i)
    x
    =
    (
    5

    3
    y
    5
    )
  • (ii)
    (
    15
    x
    9
    y
    21
    )
    =
    0
  • (iii)
    x
    =
    (
    5
    )
  • (iv)
    y
    =
    0
  • (v)
    y
    =
    (
    5

    3
    x
    25

    3
    )
Question 17
17.
    • Which of the following equations satisfy the given points
      • (
        3
        ,
        (
        2
        )
        )
      • ,
      • (
        3
        ,
        (
        1
        )
        )
      • ,
      • (
        3
        ,
        0
        )
      • ,
      • (
        3
        ,
        1
        )
      • ,
      • (
        3
        ,
        2
        )
    • ?
  • (i)
    x
    =
    (
    14

    13
    y
    +
    123

    13
    )
  • (ii)
    y
    =
    (
    14

    13
    x
    36

    13
    )
  • (iii)
    (
    35
    x
    +
    24
    y
    20
    )
    =
    0
  • (iv)
    (
    14
    x
    13
    y
    +
    48
    )
    =
    0
  • (v)
    x
    =
    3
    Assignment Key

  •  1) (iv)
  •  2) (v)
  •  3) (iii)
  •  4) (i)
  •  5) (v)
  •  6) (iii)
  •  7) (iv)
  •  8) (i)
  •  9) (ii)
  •  10) (v)
  •  11) (v)
  •  12) (v)
  •  13) (v)
  •  14) (iii)
  •  15) (v)
  •  16) (iv)
  •  17) (v)