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)
    (
    4
    x
    2
     
    +
    33
    x
    y
    35
    x
    +
    35
    y
    2
     
    38
    y
    9
    )
    =
    0
  • (ii)
    (
    7
    x
    2
     
    30
    x
    25
    )
    =
    0
  • (iii)
    (
    5
    x
    2
    )
    =
    0
  • (iv)
    (
    4
    x
    +
    2
    y
    +
    9
    z
    +
    8
    )
    =
    0
  • (v)
    (
    7
    x
    5
    y
    +
    5
    )
    =
    0
Question 2
2.
Which of the following is a linear equation in two variable?
  • (i)
    (
    12
    x
    2
     
    +
    38
    x
    72
    )
    =
    (
    5
    x
    +
    4
    )
  • (ii)
    (
    9
    x
    2
    y
    +
    8
    z
    +
    7
    )
    =
    (
    4
    x
    +
    3
    y
    5
    z
    9
    )
  • (iii)
    (
    8
    x
    y
    9
    )
    =
    (
    6
    x
    4
    y
    +
    4
    )
  • (iv)
    (
    4
    x
    +
    7
    )
    =
    (
    2
    x
    1
    )
  • (v)
    (
    16
    x
    2
     
    60
    x
    y
    46
    x
    16
    y
    2
     
    54
    y
    35
    )
    =
    0
Question 3
3.
    • The linear equation
    • (
      8
      x
      3
      y
      +
      5
      )
      =
      (
      2
      x
      9
      y
      +
      7
      )
    • is equivalent to
  • (i)
    (
    7
    x
    +
    6
    y
    2
    )
    =
    0
  • (ii)
    (
    6
    x
    +
    6
    y
    2
    )
    =
    0
  • (iii)
    (
    8
    x
    3
    y
    +
    5
    )
    =
    (
    2
    x
    7
    y
    +
    7
    )
  • (iv)
    (
    8
    x
    3
    y
    +
    5
    )
    =
    (
    2
    x
    11
    y
    +
    7
    )
  • (v)
    (
    5
    x
    +
    6
    y
    2
    )
    =
    0
Question 4
4.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      x
      +
      5
      y
      7
      )
      =
      (
      8
      x
      5
      y
      +
      7
      )
    • is
  • (i)
    x
    =
    (
    8

    5
    y
    2
    )
  • (ii)
    x
    =
    (
    4

    3
    y
    2
    )
  • (iii)
    x
    =
    (
    10

    7
    y
    2
    )
  • (iv)
    x
    =
    (
    10

    7
    y
    +
    1
    )
  • (v)
    x
    =
    (
    10

    7
    y
    4
    )
Question 5
5.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      5
      x
      +
      9
      y
      +
      4
      )
      =
      (
      2
      x
      +
      3
      y
      +
      7
      )
    • is
  • (i)
    y
    =
    (
    1

    2
    x
    1

    2
    )
  • (ii)
    y
    =
    (
    1

    2
    x
    +
    3

    2
    )
  • (iii)
    y
    =
    (
    1

    4
    x
    +
    1

    2
    )
  • (iv)
    y
    =
    (
    x
    +
    1

    2
    )
  • (v)
    y
    =
    (
    1

    2
    x
    +
    1

    2
    )
Question 6
6.
    • Find the set of points satisfying the equation
    • (
      13
      x
      +
      11
      y
      8
      )
      =
      0
  • (i)
    • (
      (
      2
      )
      ,
      (
      18

      11
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      5

      11
      )
      )
    • ,
    • (
      0
      ,
      8

      11
      )
    • ,
    • (
      1
      ,
      21

      11
      )
    • ,
    • (
      2
      ,
      34

      11
      )
  • (ii)
    • (
      (
      2
      )
      ,
      (
      18

      11
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      5

      11
      )
      )
    • ,
    • (
      1
      ,
      (
      3

      11
      )
      )
    • ,
    • (
      1
      ,
      21

      11
      )
    • ,
    • (
      2
      ,
      34

      11
      )
  • (iii)
    • (
      (
      2
      )
      ,
      (
      18

      11
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      5

      11
      )
      )
    • ,
    • (
      0
      ,
      8

      11
      )
    • ,
    • (
      0
      ,
      32

      11
      )
    • ,
    • (
      2
      ,
      34

      11
      )
  • (iv)
    • (
      (
      2
      )
      ,
      (
      18

      11
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      5

      11
      )
      )
    • ,
    • (
      0
      ,
      8

      11
      )
    • ,
    • (
      1
      ,
      21

      11
      )
    • ,
    • (
      4
      ,
      56

      11
      )
  • (v)
    • (
      (
      2
      )
      ,
      (
      18

      11
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      5

      11
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      14

      11
      )
      )
    • ,
    • (
      1
      ,
      21

      11
      )
    • ,
    • (
      2
      ,
      34

      11
      )
Question 7
7.
    • Find the set of points satisfying the equation
    • y
      =
      (
      8

      7
      x
      +
      57

      7
      )
  • (i)
    • (
      (
      2
      )
      ,
      41

      7
      )
    • ,
    • (
      (
      1
      )
      ,
      7
      )
    • ,
    • (
      0
      ,
      57

      7
      )
    • ,
    • (
      1
      ,
      65

      7
      )
    • ,
    • (
      4
      ,
      87

      7
      )
  • (ii)
    • (
      (
      2
      )
      ,
      41

      7
      )
    • ,
    • (
      (
      1
      )
      ,
      7
      )
    • ,
    • (
      (
      2
      )
      ,
      43

      7
      )
    • ,
    • (
      1
      ,
      65

      7
      )
    • ,
    • (
      2
      ,
      73

      7
      )
  • (iii)
    • (
      (
      2
      )
      ,
      41

      7
      )
    • ,
    • (
      (
      1
      )
      ,
      7
      )
    • ,
    • (
      0
      ,
      57

      7
      )
    • ,
    • (
      1
      ,
      65

      7
      )
    • ,
    • (
      2
      ,
      73

      7
      )
  • (iv)
    • (
      (
      2
      )
      ,
      41

      7
      )
    • ,
    • (
      (
      1
      )
      ,
      7
      )
    • ,
    • (
      0
      ,
      57

      7
      )
    • ,
    • (
      0
      ,
      72

      7
      )
    • ,
    • (
      2
      ,
      73

      7
      )
  • (v)
    • (
      (
      2
      )
      ,
      41

      7
      )
    • ,
    • (
      (
      1
      )
      ,
      7
      )
    • ,
    • (
      1
      ,
      50

      7
      )
    • ,
    • (
      1
      ,
      65

      7
      )
    • ,
    • (
      2
      ,
      73

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

      17
      y
      47

      17
      )
  • (i)
    • (
      (
      2
      )
      ,
      (
      13

      8
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      15

      4
      )
      )
    • ,
    • (
      0
      ,
      (
      47

      8
      )
      )
    • ,
    • (
      1
      ,
      (
      8
      )
      )
    • ,
    • (
      4
      ,
      (
      65

      8
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      (
      13

      8
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      15

      4
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      63

      8
      )
      )
    • ,
    • (
      1
      ,
      (
      8
      )
      )
    • ,
    • (
      2
      ,
      (
      81

      8
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      (
      13

      8
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      15

      4
      )
      )
    • ,
    • (
      0
      ,
      (
      47

      8
      )
      )
    • ,
    • (
      0
      ,
      (
      7
      )
      )
    • ,
    • (
      2
      ,
      (
      81

      8
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      (
      13

      8
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      15

      4
      )
      )
    • ,
    • (
      1
      ,
      (
      55

      8
      )
      )
    • ,
    • (
      1
      ,
      (
      8
      )
      )
    • ,
    • (
      2
      ,
      (
      81

      8
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      (
      13

      8
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      15

      4
      )
      )
    • ,
    • (
      0
      ,
      (
      47

      8
      )
      )
    • ,
    • (
      1
      ,
      (
      8
      )
      )
    • ,
    • (
      2
      ,
      (
      81

      8
      )
      )
Question 9
9.
    • Find the set of points satisfying the equation
    • y
      =
      (
      5
      x
      )
  • (i)
    • (
      (
      2
      )
      ,
      10
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      (
      5
      )
      )
    • ,
    • (
      2
      ,
      (
      10
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      10
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      1
      ,
      (
      5
      )
      )
    • ,
    • (
      2
      ,
      (
      10
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      10
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      0
      ,
      (
      4
      )
      )
    • ,
    • (
      2
      ,
      (
      10
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      10
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      1
      ,
      (
      1
      )
      )
    • ,
    • (
      1
      ,
      (
      5
      )
      )
    • ,
    • (
      2
      ,
      (
      10
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      10
      )
    • ,
    • (
      (
      1
      )
      ,
      5
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      (
      5
      )
      )
    • ,
    • (
      4
      ,
      (
      8
      )
      )
Question 10
10.
    • Find the set of points satisfying the equation
    • (
      25
      x
      +
      9
      y
      5
      )
      =
      0
  • (i)
    • (
      (
      2
      )
      ,
      55

      9
      )
    • ,
    • (
      (
      1
      )
      ,
      10

      3
      )
    • ,
    • (
      0
      ,
      5

      9
      )
    • ,
    • (
      1
      ,
      (
      20

      9
      )
      )
    • ,
    • (
      4
      ,
      (
      3
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      55

      9
      )
    • ,
    • (
      (
      1
      )
      ,
      10

      3
      )
    • ,
    • (
      0
      ,
      5

      9
      )
    • ,
    • (
      0
      ,
      (
      11

      9
      )
      )
    • ,
    • (
      2
      ,
      (
      5
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      55

      9
      )
    • ,
    • (
      (
      1
      )
      ,
      10

      3
      )
    • ,
    • (
      1
      ,
      (
      4

      9
      )
      )
    • ,
    • (
      1
      ,
      (
      20

      9
      )
      )
    • ,
    • (
      2
      ,
      (
      5
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      55

      9
      )
    • ,
    • (
      (
      1
      )
      ,
      10

      3
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      13

      9
      )
      )
    • ,
    • (
      1
      ,
      (
      20

      9
      )
      )
    • ,
    • (
      2
      ,
      (
      5
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      55

      9
      )
    • ,
    • (
      (
      1
      )
      ,
      10

      3
      )
    • ,
    • (
      0
      ,
      5

      9
      )
    • ,
    • (
      1
      ,
      (
      20

      9
      )
      )
    • ,
    • (
      2
      ,
      (
      5
      )
      )
Question 11
11.
    • Find the set of points satisfying the equation
    • y
      =
      1
  • (i)
    • (
      (
      2
      )
      ,
      1
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      1
      ,
      0
      )
    • ,
    • (
      1
      ,
      1
      )
    • ,
    • (
      2
      ,
      1
      )
  • (ii)
    • (
      (
      2
      )
      ,
      1
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      1
      ,
      1
      )
    • ,
    • (
      2
      ,
      1
      )
  • (iii)
    • (
      (
      2
      )
      ,
      1
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      0
      ,
      1
      )
    • ,
    • (
      0
      ,
      2
      )
    • ,
    • (
      2
      ,
      1
      )
  • (iv)
    • (
      (
      2
      )
      ,
      1
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      0
      ,
      1
      )
    • ,
    • (
      1
      ,
      1
      )
    • ,
    • (
      4
      ,
      3
      )
  • (v)
    • (
      (
      2
      )
      ,
      1
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      0
      ,
      1
      )
    • ,
    • (
      1
      ,
      1
      )
    • ,
    • (
      2
      ,
      1
      )
Question 12
12.
    • Find the set of points satisfying the equation
    • x
      =
      6
  • (i)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      6
      ,
      0
      )
    • ,
    • (
      5
      ,
      2
      )
    • ,
    • (
      6
      ,
      2
      )
  • (ii)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      4
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      1
      )
    • ,
    • (
      6
      ,
      2
      )
  • (iii)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      6
      ,
      0
      )
    • ,
    • (
      6
      ,
      1
      )
    • ,
    • (
      8
      ,
      4
      )
  • (iv)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      7
      ,
      (
      1
      )
      )
    • ,
    • (
      6
      ,
      1
      )
    • ,
    • (
      6
      ,
      2
      )
  • (v)
    • (
      6
      ,
      (
      2
      )
      )
    • ,
    • (
      6
      ,
      (
      1
      )
      )
    • ,
    • (
      6
      ,
      0
      )
    • ,
    • (
      6
      ,
      1
      )
    • ,
    • (
      6
      ,
      2
      )
Question 13
13.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        5
        )
      • ,
      • (
        (
        1
        )
        ,
        4
        )
      • ,
      • (
        0
        ,
        3
        )
      • ,
      • (
        1
        ,
        2
        )
      • ,
      • (
        2
        ,
        1
        )
    • ?
  • (i)
    y
    =
    (
    x
    13
    )
  • (ii)
    x
    =
    (
    y
    1
    )
  • (iii)
    x
    =
    (
    7
    )
  • (iv)
    (
    2
    x
    +
    2
    y
    1
    )
    =
    0
  • (v)
    (
    11
    x
    11
    y
    +
    33
    )
    =
    0
Question 14
14.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        1

        7
        )
      • ,
      • (
        (
        1
        )
        ,
        (
        13

        14
        )
        )
      • ,
      • (
        0
        ,
        (
        2
        )
        )
      • ,
      • (
        1
        ,
        (
        43

        14
        )
        )
      • ,
      • (
        2
        ,
        (
        29

        7
        )
        )
    • ?
  • (i)
    x
    =
    (
    15

    14
    y
    +
    15

    7
    )
  • (ii)
    (
    15
    x
    14
    y
    51
    )
    =
    0
  • (iii)
    y
    =
    (
    15

    14
    x
    2
    )
  • (iv)
    (
    12
    x
    +
    9
    y
    4
    )
    =
    0
  • (v)
    y
    =
    (
    2
    )
Question 15
15.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        28

        5
        )
      • ,
      • (
        (
        1
        )
        ,
        16

        5
        )
      • ,
      • (
        0
        ,
        4

        5
        )
      • ,
      • (
        1
        ,
        (
        8

        5
        )
        )
      • ,
      • (
        2
        ,
        (
        4
        )
        )
    • ?
  • (i)
    (
    12
    x
    +
    5
    y
    4
    )
    =
    0
  • (ii)
    (
    13
    x
    14
    y
    35
    )
    =
    0
  • (iii)
    x
    =
    6
  • (iv)
    y
    =
    4
  • (v)
    x
    =
    (
    13

    14
    y
    +
    16

    7
    )
Question 16
16.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        (
        8
        )
        )
      • ,
      • (
        (
        1
        )
        ,
        (
        8
        )
        )
      • ,
      • (
        0
        ,
        (
        8
        )
        )
      • ,
      • (
        1
        ,
        (
        8
        )
        )
      • ,
      • (
        2
        ,
        (
        8
        )
        )
    • ?
  • (i)
    (
    12
    x
    +
    45
    y
    10
    )
    =
    0
  • (ii)
    (
    17
    x
    14
    y
    +
    27
    )
    =
    0
  • (iii)
    y
    =
    (
    17

    14
    x
    73

    7
    )
  • (iv)
    x
    =
    (
    17

    14
    y
    +
    54

    7
    )
  • (v)
    y
    =
    (
    8
    )
Question 17
17.
    • Which of the following equations satisfy the given points
      • (
        9
        ,
        (
        2
        )
        )
      • ,
      • (
        9
        ,
        (
        1
        )
        )
      • ,
      • (
        9
        ,
        0
        )
      • ,
      • (
        9
        ,
        1
        )
      • ,
      • (
        9
        ,
        2
        )
    • ?
  • (i)
    (
    3
    x
    14
    y
    +
    1
    )
    =
    0
  • (ii)
    x
    =
    (
    3

    14
    y
    +
    111

    14
    )
  • (iii)
    y
    =
    (
    3

    14
    x
    +
    97

    14
    )
  • (iv)
    x
    =
    9
  • (v)
    (
    9
    x
    +
    8
    y
    4
    )
    =
    0
    Assignment Key

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