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)
    (
    2
    x
    4
    y
    +
    5
    z
    +
    1
    )
    =
    0
  • (ii)
    (
    9
    x
    2
     
    +
    57
    x
    18
    )
    =
    0
  • (iii)
    (
    8
    x
    +
    2
    )
    =
    0
  • (iv)
    (
    5
    x
    2
     
    38
    x
    y
    +
    19
    x
    +
    48
    y
    2
     
    48
    y
    +
    12
    )
    =
    0
  • (v)
    (
    6
    x
    3
    y
    +
    4
    )
    =
    0
Question 2
2.
Which of the following is a linear equation in two variable?
  • (i)
    (
    10
    x
    2
     
    +
    14
    x
    y
    32
    x
    48
    y
    2
     
    +
    88
    y
    32
    )
    =
    0
  • (ii)
    (
    5
    x
    9
    y
    +
    3
    )
    =
    (
    4
    x
    +
    5
    y
    )
  • (iii)
    (
    9
    x
    +
    1
    )
    =
    (
    6
    x
    +
    1
    )
  • (iv)
    (
    63
    x
    2
     
    +
    108
    x
    +
    45
    )
    =
    (
    6
    x
    +
    9
    )
  • (v)
    (
    7
    x
    +
    y
    4
    z
    +
    5
    )
    =
    (
    x
    +
    2
    y
    +
    7
    z
    6
    )
Question 3
3.
    • The linear equation
    • (
      x
      +
      2
      y
      +
      7
      )
      =
      (
      4
      x
      +
      9
      y
      1
      )
    • is equivalent to
  • (i)
    (
    2
    x
    7
    y
    +
    8
    )
    =
    0
  • (ii)
    (
    x
    +
    2
    y
    +
    7
    )
    =
    (
    4
    x
    +
    11
    y
    1
    )
  • (iii)
    (
    x
    +
    2
    y
    +
    7
    )
    =
    (
    4
    x
    +
    7
    y
    1
    )
  • (iv)
    (
    4
    x
    7
    y
    +
    8
    )
    =
    0
  • (v)
    (
    3
    x
    7
    y
    +
    8
    )
    =
    0
Question 4
4.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      2
      x
      3
      y
      +
      5
      )
      =
      (
      3
      x
      +
      4
      y
      2
      )
    • is
  • (i)
    x
    =
    (
    7
    y
    7
    )
  • (ii)
    x
    =
    (
    8
    y
    7
    )
  • (iii)
    x
    =
    (
    7
    y
    4
    )
  • (iv)
    x
    =
    (
    7
    y
    9
    )
  • (v)
    x
    =
    (
    6
    y
    7
    )
Question 5
5.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      5
      x
      +
      9
      y
      2
      )
      =
      (
      8
      x
      3
      y
      3
      )
    • is
  • (i)
    y
    =
    (
    13

    12
    x
    1

    12
    )
  • (ii)
    y
    =
    (
    15

    14
    x
    1

    12
    )
  • (iii)
    y
    =
    (
    13

    12
    x
    +
    1

    12
    )
  • (iv)
    y
    =
    (
    13

    12
    x
    1

    4
    )
  • (v)
    y
    =
    (
    11

    10
    x
    1

    12
    )
Question 6
6.
    • Find the set of points satisfying the equation
    • (
      4
      x
      12
      y
      )
      =
      0
  • (i)
    • (
      (
      2
      )
      ,
      2

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      1

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

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      2

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

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      1

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

      3
      )
    • ,
    • (
      2
      ,
      (
      2

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

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      1

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

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      2

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

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      1

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

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      2

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

      3
      )
    • ,
    • (
      (
      1
      )
      ,
      1

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

      3
      )
      )
    • ,
    • (
      4
      ,
      4

      3
      )
Question 7
7.
    • Find the set of points satisfying the equation
    • y
      =
      (
      9

      14
      x
      20

      7
      )
  • (i)
    • (
      (
      2
      )
      ,
      (
      11

      7
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      31

      14
      )
      )
    • ,
    • (
      0
      ,
      (
      20

      7
      )
      )
    • ,
    • (
      0
      ,
      (
      5

      2
      )
      )
    • ,
    • (
      2
      ,
      (
      29

      7
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      (
      11

      7
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      31

      14
      )
      )
    • ,
    • (
      1
      ,
      (
      27

      7
      )
      )
    • ,
    • (
      1
      ,
      (
      7

      2
      )
      )
    • ,
    • (
      2
      ,
      (
      29

      7
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      (
      11

      7
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      31

      14
      )
      )
    • ,
    • (
      0
      ,
      (
      20

      7
      )
      )
    • ,
    • (
      1
      ,
      (
      7

      2
      )
      )
    • ,
    • (
      4
      ,
      (
      15

      7
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      (
      11

      7
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      31

      14
      )
      )
    • ,
    • (
      0
      ,
      (
      20

      7
      )
      )
    • ,
    • (
      1
      ,
      (
      7

      2
      )
      )
    • ,
    • (
      2
      ,
      (
      29

      7
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      (
      11

      7
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      31

      14
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      34

      7
      )
      )
    • ,
    • (
      1
      ,
      (
      7

      2
      )
      )
    • ,
    • (
      2
      ,
      (
      29

      7
      )
      )
Question 8
8.
    • Find the set of points satisfying the equation
    • x
      =
      (
      1

      3
      y
      20

      3
      )
  • (i)
    • (
      (
      2
      )
      ,
      (
      14
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      17
      )
      )
    • ,
    • (
      0
      ,
      (
      20
      )
      )
    • ,
    • (
      1
      ,
      (
      23
      )
      )
    • ,
    • (
      2
      ,
      (
      26
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      (
      14
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      17
      )
      )
    • ,
    • (
      0
      ,
      (
      20
      )
      )
    • ,
    • (
      1
      ,
      (
      23
      )
      )
    • ,
    • (
      4
      ,
      (
      24
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      (
      14
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      17
      )
      )
    • ,
    • (
      0
      ,
      (
      20
      )
      )
    • ,
    • (
      0
      ,
      (
      22
      )
      )
    • ,
    • (
      2
      ,
      (
      26
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      (
      14
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      17
      )
      )
    • ,
    • (
      1
      ,
      (
      21
      )
      )
    • ,
    • (
      1
      ,
      (
      23
      )
      )
    • ,
    • (
      2
      ,
      (
      26
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      (
      14
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      17
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      22
      )
      )
    • ,
    • (
      1
      ,
      (
      23
      )
      )
    • ,
    • (
      2
      ,
      (
      26
      )
      )
Question 9
9.
    • Find the set of points satisfying the equation
    • y
      =
      7

      5
      x
  • (i)
    • (
      (
      2
      )
      ,
      (
      14

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      7

      5
      )
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      7

      5
      )
    • ,
    • (
      4
      ,
      24

      5
      )
  • (ii)
    • (
      (
      2
      )
      ,
      (
      14

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      7

      5
      )
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      0
      ,
      12

      5
      )
    • ,
    • (
      2
      ,
      14

      5
      )
  • (iii)
    • (
      (
      2
      )
      ,
      (
      14

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      7

      5
      )
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      7

      5
      )
    • ,
    • (
      2
      ,
      14

      5
      )
  • (iv)
    • (
      (
      2
      )
      ,
      (
      14

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      7

      5
      )
      )
    • ,
    • (
      1
      ,
      (
      1
      )
      )
    • ,
    • (
      1
      ,
      7

      5
      )
    • ,
    • (
      2
      ,
      14

      5
      )
  • (v)
    • (
      (
      2
      )
      ,
      (
      14

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      7

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

      5
      )
    • ,
    • (
      2
      ,
      14

      5
      )
Question 10
10.
    • Find the set of points satisfying the equation
    • (
      2
      x
      +
      4
      y
      1
      )
      =
      0
  • (i)
    • (
      (
      2
      )
      ,
      5

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      3

      4
      )
    • ,
    • (
      0
      ,
      1

      4
      )
    • ,
    • (
      1
      ,
      (
      1

      4
      )
      )
    • ,
    • (
      4
      ,
      5

      4
      )
  • (ii)
    • (
      (
      2
      )
      ,
      5

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      3

      4
      )
    • ,
    • (
      0
      ,
      1

      4
      )
    • ,
    • (
      1
      ,
      (
      1

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      3

      4
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      5

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      3

      4
      )
    • ,
    • (
      1
      ,
      (
      3

      4
      )
      )
    • ,
    • (
      1
      ,
      (
      1

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      3

      4
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      5

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      3

      4
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      7

      4
      )
      )
    • ,
    • (
      1
      ,
      (
      1

      4
      )
      )
    • ,
    • (
      2
      ,
      (
      3

      4
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      5

      4
      )
    • ,
    • (
      (
      1
      )
      ,
      3

      4
      )
    • ,
    • (
      0
      ,
      1

      4
      )
    • ,
    • (
      0
      ,
      3

      4
      )
    • ,
    • (
      2
      ,
      (
      3

      4
      )
      )
Question 11
11.
    • Find the set of points satisfying the equation
    • y
      =
      5
  • (i)
    • (
      (
      2
      )
      ,
      5
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      0
      ,
      5
      )
    • ,
    • (
      1
      ,
      5
      )
    • ,
    • (
      2
      ,
      5
      )
  • (ii)
    • (
      (
      2
      )
      ,
      5
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      0
      ,
      5
      )
    • ,
    • (
      0
      ,
      6
      )
    • ,
    • (
      2
      ,
      5
      )
  • (iii)
    • (
      (
      2
      )
      ,
      5
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      1
      ,
      4
      )
    • ,
    • (
      1
      ,
      5
      )
    • ,
    • (
      2
      ,
      5
      )
  • (iv)
    • (
      (
      2
      )
      ,
      5
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      (
      2
      )
      ,
      3
      )
    • ,
    • (
      1
      ,
      5
      )
    • ,
    • (
      2
      ,
      5
      )
  • (v)
    • (
      (
      2
      )
      ,
      5
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      0
      ,
      5
      )
    • ,
    • (
      1
      ,
      5
      )
    • ,
    • (
      4
      ,
      7
      )
Question 12
12.
    • Find the set of points satisfying the equation
    • x
      =
      6
  • (i)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      4
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      1
      )
    • ,
    • (
      6
      ,
      2
      )
  • (ii)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      6
      ,
      0
      )
    • ,
    • (
      6
      ,
      1
      )
    • ,
    • (
      8
      ,
      4
      )
  • (iii)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      6
      ,
      0
      )
    • ,
    • (
      6
      ,
      1
      )
    • ,
    • (
      6
      ,
      2
      )
  • (iv)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      6
      ,
      0
      )
    • ,
    • (
      5
      ,
      2
      )
    • ,
    • (
      6
      ,
      2
      )
  • (v)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      7
      ,
      (
      1
      )
      )
    • ,
    • (
      6
      ,
      1
      )
    • ,
    • (
      6
      ,
      2
      )
Question 13
13.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        8

        3
        )
      • ,
      • (
        (
        1
        )
        ,
        25

        12
        )
      • ,
      • (
        0
        ,
        3

        2
        )
      • ,
      • (
        1
        ,
        11

        12
        )
      • ,
      • (
        2
        ,
        1

        3
        )
    • ?
  • (i)
    x
    =
    (
    7

    12
    y
    29

    4
    )
  • (ii)
    x
    =
    (
    9
    )
  • (iii)
    y
    =
    (
    3
    )
  • (iv)
    y
    =
    (
    7

    12
    x
    33

    4
    )
  • (v)
    (
    7
    x
    12
    y
    +
    18
    )
    =
    0
Question 14
14.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        46

        3
        )
      • ,
      • (
        (
        1
        )
        ,
        14
        )
      • ,
      • (
        0
        ,
        38

        3
        )
      • ,
      • (
        1
        ,
        34

        3
        )
      • ,
      • (
        2
        ,
        10
        )
    • ?
  • (i)
    y
    =
    (
    4

    3
    x
    +
    38

    3
    )
  • (ii)
    y
    =
    2
  • (iii)
    (
    16
    x
    12
    y
    28
    )
    =
    0
  • (iv)
    x
    =
    (
    4

    3
    y
    +
    16

    3
    )
  • (v)
    x
    =
    8
Question 15
15.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        22

        9
        )
      • ,
      • (
        (
        1
        )
        ,
        14

        9
        )
      • ,
      • (
        0
        ,
        2

        3
        )
      • ,
      • (
        1
        ,
        (
        2

        9
        )
        )
      • ,
      • (
        2
        ,
        (
        10

        9
        )
        )
    • ?
  • (i)
    (
    8
    x
    +
    9
    y
    6
    )
    =
    0
  • (ii)
    x
    =
    (
    7
    )
  • (iii)
    y
    =
    (
    10

    13
    x
    44

    13
    )
  • (iv)
    (
    10
    x
    13
    y
    28
    )
    =
    0
  • (v)
    x
    =
    (
    10

    13
    y
    111

    13
    )
Question 16
16.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        0
        )
      • ,
      • (
        (
        1
        )
        ,
        0
        )
      • ,
      • (
        0
        ,
        0
        )
      • ,
      • (
        1
        ,
        0
        )
      • ,
      • (
        2
        ,
        0
        )
    • ?
  • (i)
    y
    =
    0
  • (ii)
    x
    =
    (
    12

    5
    y
    +
    5
    )
  • (iii)
    y
    =
    (
    12

    5
    x
    +
    12
    )
  • (iv)
    x
    =
    5
  • (v)
    (
    35
    x
    +
    16
    y
    14
    )
    =
    0
Question 17
17.
    • Which of the following equations satisfy the given points
      • (
        0
        ,
        (
        2
        )
        )
      • ,
      • (
        0
        ,
        (
        1
        )
        )
      • ,
      • (
        0
        ,
        0
        )
      • ,
      • (
        0
        ,
        1
        )
      • ,
      • (
        0
        ,
        2
        )
    • ?
  • (i)
    x
    =
    0
  • (ii)
    y
    =
    (
    9
    )
  • (iii)
    (
    9
    x
    6
    y
    27
    )
    =
    0
  • (iv)
    y
    =
    (
    3

    2
    x
    9
    )
  • (v)
    x
    =
    (
    3

    2
    y
    +
    27

    2
    )
    Assignment Key

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