CBSE Board Practice

Class VI Class VII Class VIII Class IX Class X
CBSE Grade IX - Linear Equations in two Variables
Question 1
1.
Any line parallel to x-axis is
  • a vertical line
  • an oblique line
  • a horizontal line
  • a curved line
Question 2
2.
    • Which of the following equations satisfy the given points
      • (
        3
        ,
        (
        −
        2
        )
        )
      • ,
      • (
        3
        ,
        (
        −
        1
        )
        )
      • ,
      • (
        3
        ,
        0
        )
      • ,
      • (
        3
        ,
        1
        )
      • ,
      • (
        3
        ,
        2
        )
    • ?
  • y
    =
    (
    −
    2
    3
    x
    −
    6
    		)
  • (
    −
    4
    x
    −
    6
    y
    +
    2
    		)
    =
    0
  • x
    =
    3
  • x
    =
    (
    2
    3
    y
    +
    25
    3
    		)
  • (
    8
    x
    +
    2
    y
    −
    1
    		)
    =
    0
Question 3
3.
    • Which of the following equations satisfy the given points
      • (
        (
        −
        2
        )
        ,
        3
        )
      • ,
      • (
        (
        −
        1
        )
        ,
        3
        )
      • ,
      • (
        0
        ,
        3
        )
      • ,
      • (
        1
        ,
        3
        )
      • ,
      • (
        2
        ,
        3
        )
    • ?
  • y
    =
    3
  • (
    5
    x
    +
    6
    y
    −
    3
    		)
    =
    0
  • (
    −
    11
    x
    −
    9
    y
    −
    34
    		)
    =
    0
  • x
    =
    8
  • y
    =
    (
    −
    11
    9
    x
    +
    115
    9
    		)
Question 4
4.
Equation of a straight line which is parallel to x-axis (where k is a constant) is
  • x
    =
    0
  • x
    =
    k
  • y
    =
    k
  • y
    =
    0
  • x
    =
    y
Question 5
5.
    • Which of the displayed lines represent the equation
    • y
      =
      (
      5
      3
      x
      +
      1
      		)
      • line with point
      • R
      • line with point
      • S
      • line with point
      • P
      • line with point
      • T
      • line with point
      • Q
Question 6
6.
Any line parallel to y-axis is
  • a curved line
  • a horizontal line
  • a vertical line
  • an oblique line
Question 7
7.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      −
      8
      x
      +
      6
      y
      −
      6
      		)
      =
      (
      6
      x
      +
      9
      y
      +
      3
      		)
    • is
  • y
    =
    (
    −
    14
    3
    x
    		)
  • y
    =
    (
    −
    22
    5
    x
    −
    3
    		)
  • y
    =
    (
    −
    6
    x
    −
    3
    		)
  • y
    =
    (
    −
    14
    3
    x
    −
    5
    		)
  • y
    =
    (
    −
    14
    3
    x
    −
    3
    		)
Question 8
8.
    • Find the set of points satisfying the equation
    		•
      x
      =
      (
      1
      3
      y
      +
      26
      3
      		)
    • (
      (
      −
      2
      )
      ,
      (
      −
      32
      )
      )
    • ,
    • (
      (
      −
      1
      )
      ,
      (
      −
      29
      )
      )
    • ,
    • (
      0
      ,
      (
      −
      26
      )
      )
    • ,
    • (
      0
      ,
      (
      −
      22
      )
      )
    • ,
    • (
      2
      ,
      (
      −
      20
      )
      )
    • (
      (
      −
      2
      )
      ,
      (
      −
      32
      )
      )
    • ,
    • (
      (
      −
      1
      )
      ,
      (
      −
      29
      )
      )
    • ,
    • (
      (
      −
      2
      )
      ,
      (
      −
      28
      )
      )
    • ,
    • (
      1
      ,
      (
      −
      23
      )
      )
    • ,
    • (
      2
      ,
      (
      −
      20
      )
      )
    • (
      (
      −
      2
      )
      ,
      (
      −
      32
      )
      )
    • ,
    • (
      (
      −
      1
      )
      ,
      (
      −
      29
      )
      )
    • ,
    • (
      0
      ,
      (
      −
      26
      )
      )
    • ,
    • (
      1
      ,
      (
      −
      23
      )
      )
    • ,
    • (
      2
      ,
      (
      −
      20
      )
      )
    • (
      (
      −
      2
      )
      ,
      (
      −
      32
      )
      )
    • ,
    • (
      (
      −
      1
      )
      ,
      (
      −
      29
      )
      )
    • ,
    • (
      1
      ,
      (
      −
      27
      )
      )
    • ,
    • (
      1
      ,
      (
      −
      23
      )
      )
    • ,
    • (
      2
      ,
      (
      −
      20
      )
      )
    • (
      (
      −
      2
      )
      ,
      (
      −
      32
      )
      )
    • ,
    • (
      (
      −
      1
      )
      ,
      (
      −
      29
      )
      )
    • ,
    • (
      0
      ,
      (
      −
      26
      )
      )
    • ,
    • (
      1
      ,
      (
      −
      23
      )
      )
    • ,
    • (
      4
      ,
      (
      −
      18
      )
      )
Question 9
9.
The equation of y-axis is
  • y
    =
    x
  • x
    =
    1
  • y
    =
    1
  • x
    =
    0
  • y
    =
    0
Question 10
10.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      9
      x
      +
      y
      −
      1
      		)
      =
      (
      5
      x
      +
      2
      y
      −
      5
      		)
    • is
  • x
    =
    (
    1
    4
    y
    −
    1
    		)
  • x
    =
    (
    1
    4
    y
    +
    1
    		)
  • x
    =
    (
    1
    2
    y
    −
    1
    		)
  • x
    =
    (
    1
    4
    y
    −
    4
    		)
  • x
    =
    (
    1
    6
    y
    −
    1
    		)