CBSE Board Practice

CBSE Grade IX - Linear Equations in two Variables
Question 1
1.
    • Find the set of points satisfying the equation
    • (
      14
      x
      y
      105
      )
      =
      0
    • (
      (
      2
      )
      ,
      (
      77
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      91
      )
      )
    • ,
    • (
      0
      ,
      (
      105
      )
      )
    • ,
    • (
      0
      ,
      (
      118
      )
      )
    • ,
    • (
      2
      ,
      (
      133
      )
      )
    • (
      (
      2
      )
      ,
      (
      77
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      91
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      107
      )
      )
    • ,
    • (
      1
      ,
      (
      119
      )
      )
    • ,
    • (
      2
      ,
      (
      133
      )
      )
    • (
      (
      2
      )
      ,
      (
      77
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      91
      )
      )
    • ,
    • (
      1
      ,
      (
      106
      )
      )
    • ,
    • (
      1
      ,
      (
      119
      )
      )
    • ,
    • (
      2
      ,
      (
      133
      )
      )
    • (
      (
      2
      )
      ,
      (
      77
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      91
      )
      )
    • ,
    • (
      0
      ,
      (
      105
      )
      )
    • ,
    • (
      1
      ,
      (
      119
      )
      )
    • ,
    • (
      2
      ,
      (
      133
      )
      )
    • (
      (
      2
      )
      ,
      (
      77
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      91
      )
      )
    • ,
    • (
      0
      ,
      (
      105
      )
      )
    • ,
    • (
      1
      ,
      (
      119
      )
      )
    • ,
    • (
      4
      ,
      (
      131
      )
      )
Question 2
2.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      3
      x
      +
      9
      y
      +
      2
      )
      =
      (
      5
      x
      2
      y
      +
      8
      )
    • is
  • y
    =
    (
    8

    11
    x
    +
    6

    11
    )
  • y
    =
    (
    8

    11
    x
    +
    8

    11
    )
  • y
    =
    (
    8

    11
    x
    +
    4

    11
    )
  • y
    =
    (
    8

    9
    x
    +
    6

    11
    )
  • y
    =
    (
    8

    13
    x
    +
    6

    11
    )
Question 3
3.
Any line parallel to y-axis is
  • an oblique line
  • a curved line
  • a horizontal line
  • a vertical line
Question 4
4.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      9
      x
      6
      y
      4
      )
      =
      (
      8
      x
      8
      y
      +
      4
      )
    • is
  • x
    =
    (
    2

    19
    y
    +
    8

    17
    )
  • x
    =
    (
    2

    17
    y
    +
    6

    17
    )
  • x
    =
    (
    2

    17
    y
    +
    8

    17
    )
  • x
    =
    (
    2

    15
    y
    +
    8

    17
    )
  • x
    =
    (
    2

    17
    y
    +
    10

    17
    )
Question 5
5.
    • Find the equation of the line passing through the points
    • (
      (
      2
      )
      ,
      (
      7
      )
      )
    • and
    • (
      3
      ,
      0
      )
  • (
    6
    x
    5
    y
    21
    )
    =
    0
  • (
    7
    x
    5
    y
    21
    )
    =
    0
  • (
    8
    x
    5
    y
    21
    )
    =
    0
  • (
    7
    x
    +
    5
    y
    +
    28
    )
    =
    0
  • (
    7
    x
    +
    5
    y
    +
    16
    )
    =
    0
Question 6
6.
    • Find the set of points satisfying the equation
    • x
      =
      (
      3

      5
      y
      +
      19

      5
      )
    • (
      (
      2
      )
      ,
      (
      29

      3
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      8
      )
      )
    • ,
    • (
      0
      ,
      (
      19

      3
      )
      )
    • ,
    • (
      0
      ,
      (
      11

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      3
      )
      )
    • (
      (
      2
      )
      ,
      (
      29

      3
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      8
      )
      )
    • ,
    • (
      1
      ,
      (
      22

      3
      )
      )
    • ,
    • (
      1
      ,
      (
      14

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      3
      )
      )
    • (
      (
      2
      )
      ,
      (
      29

      3
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      8
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      25

      3
      )
      )
    • ,
    • (
      1
      ,
      (
      14

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      3
      )
      )
    • (
      (
      2
      )
      ,
      (
      29

      3
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      8
      )
      )
    • ,
    • (
      0
      ,
      (
      19

      3
      )
      )
    • ,
    • (
      1
      ,
      (
      14

      3
      )
      )
    • ,
    • (
      4
      ,
      (
      1
      )
      )
    • (
      (
      2
      )
      ,
      (
      29

      3
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      8
      )
      )
    • ,
    • (
      0
      ,
      (
      19

      3
      )
      )
    • ,
    • (
      1
      ,
      (
      14

      3
      )
      )
    • ,
    • (
      2
      ,
      (
      3
      )
      )
Question 7
7.
Find the equation of the displayed line
  • y
    =
    (
    1
    )
  • x
    =
    0
  • 4
    x
    =
    (
    1
    )
  • x
    =
    (
    1
    )
  • x
    =
    (
    2
    )
Question 8
8.
Any line parallel to x-axis is
  • a horizontal line
  • an oblique line
  • a vertical line
  • a curved line
Question 9
9.
    • Which of the following lines do not pass through the origin?
  • (
    6
    x
    +
    5
    y
    )
    =
    0
  • (
    6
    x
    8
    y
    )
    =
    0
  • (
    3
    x
    +
    8
    y
    )
    =
    0
  • (
    x
    4
    y
    )
    =
    0
  • (
    3
    x
    +
    16
    y
    +
    81
    )
    =
    0
Question 10
10.
Which of the following is a linear equation in two variable?
  • (
    9
    x
    7
    y
    5
    )
    =
    (
    6
    x
    +
    8
    y
    )
  • (
    18
    x
    2
     
    67
    x
    63
    )
    =
    (
    6
    x
    3
    )
  • (
    2
    x
    y
    4
    z
    +
    2
    )
    =
    (
    8
    x
    8
    y
    +
    6
    z
    1
    )
  • (
    28
    x
    2
     
    45
    x
    y
    74
    x
    +
    18
    y
    2
     
    +
    60
    y
    +
    48
    )
    =
    0
  • (
    6
    x
    )
    =
    (
    9
    x
    +
    5
    )