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)
    (
    45
    x
    2
     
    +
    45
    )
    =
    0
  • (ii)
    (
    3
    x
    2
    y
    +
    5
    z
    +
    8
    )
    =
    0
  • (iii)
    (
    16
    x
    2
     
    32
    x
    y
    56
    x
    16
    y
    2
     
    56
    y
    40
    )
    =
    0
  • (iv)
    (
    6
    x
    +
    4
    y
    +
    3
    )
    =
    0
  • (v)
    5
    x
    =
    0
Question 2
2.
Which of the following is a linear equation in two variable?
  • (i)
    (
    8
    x
    y
    +
    5
    )
    =
    (
    7
    x
    +
    4
    y
    +
    1
    )
  • (ii)
    (
    5
    x
    y
    3
    z
    +
    4
    )
    =
    (
    7
    x
    4
    y
    5
    z
    )
  • (iii)
    (
    8
    x
    +
    7
    )
    =
    (
    6
    x
    1
    )
  • (iv)
    (
    40
    x
    2
     
    +
    88
    x
    y
    +
    2
    x
    +
    48
    y
    2
     
    +
    4
    y
    2
    )
    =
    0
  • (v)
    (
    18
    x
    2
     
    +
    30
    x
    +
    12
    )
    =
    (
    2
    x
    +
    2
    )
Question 3
3.
    • The linear equation
    • (
      6
      x
      +
      7
      y
      5
      )
      =
      (
      3
      x
      4
      y
      +
      8
      )
    • is equivalent to
  • (i)
    (
    3
    x
    +
    11
    y
    13
    )
    =
    0
  • (ii)
    (
    2
    x
    +
    11
    y
    13
    )
    =
    0
  • (iii)
    (
    6
    x
    +
    7
    y
    5
    )
    =
    (
    3
    x
    6
    y
    +
    8
    )
  • (iv)
    (
    4
    x
    +
    11
    y
    13
    )
    =
    0
  • (v)
    (
    6
    x
    +
    7
    y
    5
    )
    =
    (
    3
    x
    2
    y
    +
    8
    )
Question 4
4.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      4
      x
      2
      y
      3
      )
      =
      (
      6
      x
      +
      2
      y
      5
      )
    • is
  • (i)
    x
    =
    (
    2

    3
    y
    +
    1

    5
    )
  • (ii)
    x
    =
    (
    2

    5
    y
    1

    5
    )
  • (iii)
    x
    =
    (
    2

    5
    y
    +
    1

    5
    )
  • (iv)
    x
    =
    (
    2

    7
    y
    +
    1

    5
    )
  • (v)
    x
    =
    (
    2

    5
    y
    +
    3

    5
    )
Question 5
5.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      9
      x
      +
      4
      y
      +
      5
      )
      =
      (
      5
      x
      +
      5
      y
      +
      9
      )
    • is
  • (i)
    y
    =
    (
    14
    x
    2
    )
  • (ii)
    y
    =
    (
    14
    x
    7
    )
  • (iii)
    y
    =
    (
    13
    x
    4
    )
  • (iv)
    y
    =
    (
    15
    x
    4
    )
  • (v)
    y
    =
    (
    14
    x
    4
    )
Question 6
6.
    • Find the set of points satisfying the equation
    • (
      8
      x
      10
      y
      52
      )
      =
      0
  • (i)
    • (
      (
      2
      )
      ,
      (
      18

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      22

      5
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      36

      5
      )
      )
    • ,
    • (
      1
      ,
      (
      6
      )
      )
    • ,
    • (
      2
      ,
      (
      34

      5
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      (
      18

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      22

      5
      )
      )
    • ,
    • (
      0
      ,
      (
      26

      5
      )
      )
    • ,
    • (
      1
      ,
      (
      6
      )
      )
    • ,
    • (
      4
      ,
      (
      24

      5
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      (
      18

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      22

      5
      )
      )
    • ,
    • (
      0
      ,
      (
      26

      5
      )
      )
    • ,
    • (
      0
      ,
      (
      5
      )
      )
    • ,
    • (
      2
      ,
      (
      34

      5
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      (
      18

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      22

      5
      )
      )
    • ,
    • (
      1
      ,
      (
      31

      5
      )
      )
    • ,
    • (
      1
      ,
      (
      6
      )
      )
    • ,
    • (
      2
      ,
      (
      34

      5
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      (
      18

      5
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      22

      5
      )
      )
    • ,
    • (
      0
      ,
      (
      26

      5
      )
      )
    • ,
    • (
      1
      ,
      (
      6
      )
      )
    • ,
    • (
      2
      ,
      (
      34

      5
      )
      )
Question 7
7.
    • Find the set of points satisfying the equation
    • y
      =
      (
      10
      x
      49
      )
  • (i)
    • (
      (
      2
      )
      ,
      (
      29
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      39
      )
      )
    • ,
    • (
      0
      ,
      (
      49
      )
      )
    • ,
    • (
      1
      ,
      (
      59
      )
      )
    • ,
    • (
      2
      ,
      (
      69
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      (
      29
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      39
      )
      )
    • ,
    • (
      0
      ,
      (
      49
      )
      )
    • ,
    • (
      0
      ,
      (
      58
      )
      )
    • ,
    • (
      2
      ,
      (
      69
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      (
      29
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      39
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      51
      )
      )
    • ,
    • (
      1
      ,
      (
      59
      )
      )
    • ,
    • (
      2
      ,
      (
      69
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      (
      29
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      39
      )
      )
    • ,
    • (
      0
      ,
      (
      49
      )
      )
    • ,
    • (
      1
      ,
      (
      59
      )
      )
    • ,
    • (
      4
      ,
      (
      67
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      (
      29
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      39
      )
      )
    • ,
    • (
      1
      ,
      (
      50
      )
      )
    • ,
    • (
      1
      ,
      (
      59
      )
      )
    • ,
    • (
      2
      ,
      (
      69
      )
      )
Question 8
8.
    • Find the set of points satisfying the equation
    • x
      =
      (
      1

      6
      y
      43

      6
      )
  • (i)
    • (
      (
      2
      )
      ,
      31
      )
    • ,
    • (
      (
      1
      )
      ,
      37
      )
    • ,
    • (
      (
      2
      )
      ,
      41
      )
    • ,
    • (
      1
      ,
      49
      )
    • ,
    • (
      2
      ,
      55
      )
  • (ii)
    • (
      (
      2
      )
      ,
      31
      )
    • ,
    • (
      (
      1
      )
      ,
      37
      )
    • ,
    • (
      0
      ,
      43
      )
    • ,
    • (
      0
      ,
      50
      )
    • ,
    • (
      2
      ,
      55
      )
  • (iii)
    • (
      (
      2
      )
      ,
      31
      )
    • ,
    • (
      (
      1
      )
      ,
      37
      )
    • ,
    • (
      0
      ,
      43
      )
    • ,
    • (
      1
      ,
      49
      )
    • ,
    • (
      4
      ,
      57
      )
  • (iv)
    • (
      (
      2
      )
      ,
      31
      )
    • ,
    • (
      (
      1
      )
      ,
      37
      )
    • ,
    • (
      0
      ,
      43
      )
    • ,
    • (
      1
      ,
      49
      )
    • ,
    • (
      2
      ,
      55
      )
  • (v)
    • (
      (
      2
      )
      ,
      31
      )
    • ,
    • (
      (
      1
      )
      ,
      37
      )
    • ,
    • (
      1
      ,
      42
      )
    • ,
    • (
      1
      ,
      49
      )
    • ,
    • (
      2
      ,
      55
      )
Question 9
9.
    • Find the set of points satisfying the equation
    • y
      =
      (
      x
      )
  • (i)
    • (
      (
      2
      )
      ,
      2
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      (
      1
      )
      )
    • ,
    • (
      4
      ,
      0
      )
  • (ii)
    • (
      (
      2
      )
      ,
      2
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      1
      ,
      (
      1
      )
      )
    • ,
    • (
      2
      ,
      (
      2
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      2
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      2
      ,
      (
      2
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      2
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      (
      1
      )
      )
    • ,
    • (
      2
      ,
      (
      2
      )
      )
  • (v)
    • (
      (
      2
      )
      ,
      2
      )
    • ,
    • (
      (
      1
      )
      ,
      1
      )
    • ,
    • (
      1
      ,
      (
      1
      )
      )
    • ,
    • (
      2
      ,
      (
      2
      )
      )
Question 10
10.
    • Find the set of points satisfying the equation
    • (
      9
      x
      +
      8
      y
      6
      )
      =
      0
  • (i)
    • (
      (
      2
      )
      ,
      3
      )
    • ,
    • (
      (
      1
      )
      ,
      15

      8
      )
    • ,
    • (
      0
      ,
      3

      4
      )
    • ,
    • (
      1
      ,
      (
      3

      8
      )
      )
    • ,
    • (
      2
      ,
      (
      3

      2
      )
      )
  • (ii)
    • (
      (
      2
      )
      ,
      3
      )
    • ,
    • (
      (
      1
      )
      ,
      15

      8
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      5

      4
      )
      )
    • ,
    • (
      1
      ,
      (
      3

      8
      )
      )
    • ,
    • (
      2
      ,
      (
      3

      2
      )
      )
  • (iii)
    • (
      (
      2
      )
      ,
      3
      )
    • ,
    • (
      (
      1
      )
      ,
      15

      8
      )
    • ,
    • (
      0
      ,
      3

      4
      )
    • ,
    • (
      0
      ,
      5

      8
      )
    • ,
    • (
      2
      ,
      (
      3

      2
      )
      )
  • (iv)
    • (
      (
      2
      )
      ,
      3
      )
    • ,
    • (
      (
      1
      )
      ,
      15

      8
      )
    • ,
    • (
      0
      ,
      3

      4
      )
    • ,
    • (
      1
      ,
      (
      3

      8
      )
      )
    • ,
    • (
      4
      ,
      1

      2
      )
  • (v)
    • (
      (
      2
      )
      ,
      3
      )
    • ,
    • (
      (
      1
      )
      ,
      15

      8
      )
    • ,
    • (
      1
      ,
      (
      1

      4
      )
      )
    • ,
    • (
      1
      ,
      (
      3

      8
      )
      )
    • ,
    • (
      2
      ,
      (
      3

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

        5
        )
      • ,
      • (
        (
        1
        )
        ,
        (
        3

        5
        )
        )
      • ,
      • (
        0
        ,
        (
        9

        5
        )
        )
      • ,
      • (
        1
        ,
        (
        3
        )
        )
      • ,
      • (
        2
        ,
        (
        21

        5
        )
        )
    • ?
  • (i)
    y
    =
    4
  • (ii)
    y
    =
    (
    6

    5
    x
    +
    62

    5
    )
  • (iii)
    (
    12
    x
    10
    y
    18
    )
    =
    0
  • (iv)
    (
    9
    x
    +
    3
    y
    1
    )
    =
    0
  • (v)
    x
    =
    7
Question 14
14.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        (
        3
        )
        )
      • ,
      • (
        (
        1
        )
        ,
        (
        9

        2
        )
        )
      • ,
      • (
        0
        ,
        (
        6
        )
        )
      • ,
      • (
        1
        ,
        (
        15

        2
        )
        )
      • ,
      • (
        2
        ,
        (
        9
        )
        )
    • ?
  • (i)
    x
    =
    (
    4
    )
  • (ii)
    y
    =
    0
  • (iii)
    x
    =
    (
    3

    2
    y
    4
    )
  • (iv)
    (
    6
    x
    +
    3
    y
    2
    )
    =
    0
  • (v)
    y
    =
    (
    3

    2
    x
    6
    )
Question 15
15.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        10

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

        3
        )
      • ,
      • (
        1
        ,
        (
        2

        3
        )
        )
      • ,
      • (
        2
        ,
        (
        2
        )
        )
    • ?
  • (i)
    x
    =
    (
    7

    10
    y
    28

    5
    )
  • (ii)
    y
    =
    (
    7

    10
    x
    +
    8
    )
  • (iii)
    (
    4
    x
    +
    3
    y
    2
    )
    =
    0
  • (iv)
    (
    7
    x
    10
    y
    +
    12
    )
    =
    0
  • (v)
    x
    =
    0
Question 16
16.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        (
        8
        )
        )
      • ,
      • (
        (
        1
        )
        ,
        (
        8
        )
        )
      • ,
      • (
        0
        ,
        (
        8
        )
        )
      • ,
      • (
        1
        ,
        (
        8
        )
        )
      • ,
      • (
        2
        ,
        (
        8
        )
        )
    • ?
  • (i)
    x
    =
    (
    9

    14
    y
    +
    57

    7
    )
  • (ii)
    y
    =
    (
    9

    14
    x
    85

    14
    )
  • (iii)
    (
    9
    x
    14
    y
    17
    )
    =
    0
  • (iv)
    (
    4
    x
    +
    6
    y
    3
    )
    =
    0
  • (v)
    y
    =
    (
    8
    )
Question 17
17.
    • Which of the following equations satisfy the given points
      • (
        7
        ,
        (
        2
        )
        )
      • ,
      • (
        7
        ,
        (
        1
        )
        )
      • ,
      • (
        7
        ,
        0
        )
      • ,
      • (
        7
        ,
        1
        )
      • ,
      • (
        7
        ,
        2
        )
    • ?
  • (i)
    y
    =
    (
    15

    11
    x
    +
    116

    11
    )
  • (ii)
    x
    =
    (
    15

    11
    y
    +
    62

    11
    )
  • (iii)
    y
    =
    1
  • (iv)
    x
    =
    7
  • (v)
    (
    15
    x
    11
    y
    +
    36
    )
    =
    0
    Assignment Key

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