CBSE Board Practice

CBSE Grade X - Pair of Linear Equations in Two Variables
Question 1
1.
    • Which of the following equations satisfy the given points
      • (
        (
        7
        )
        ,
        (
        2
        )
        )
      • ,
      • (
        (
        7
        )
        ,
        (
        1
        )
        )
      • ,
      • (
        (
        7
        )
        ,
        0
        )
      • ,
      • (
        (
        7
        )
        ,
        1
        )
      • ,
      • (
        (
        7
        )
        ,
        2
        )
    • ?
  • x
    =
    (
    18

    5
    y
    7
    )
  • x
    =
    (
    7
    )
  • (
    18
    x
    5
    y
    +
    27
    )
    =
    0
  • y
    =
    0
  • (
    3
    x
    +
    8
    y
    1
    )
    =
    0
Question 2
2.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        0
        )
      • ,
      • (
        (
        1
        )
        ,
        0
        )
      • ,
      • (
        0
        ,
        0
        )
      • ,
      • (
        1
        ,
        0
        )
      • ,
      • (
        2
        ,
        0
        )
    • ?
  • x
    =
    (
    3

    2
    y
    8
    )
  • y
    =
    (
    3

    2
    x
    12
    )
  • y
    =
    0
  • (
    2
    x
    +
    2
    y
    1
    )
    =
    0
  • (
    12
    x
    8
    y
    )
    =
    0
Question 3
3.
    • Solve
    • (
      4
      x
      +
      5
      y
      +
      4
      )
      =
      (
      x
      +
      y
      1
      )
      (
      4
      x
      2
      y
      +
      4
      )
      =
      (
      x
      +
      2
      y
      2
      )
  • (
    13

    10
    ,
    1

    6
    )
  • (
    11

    10
    ,
    1

    8
    )
  • (
    13

    10
    ,
    (
    -1

    8
    )
    )
  • (
    13

    12
    ,
    1

    6
    )
  • (
    13

    12
    ,
    1

    8
    )
Question 4
4.
    • Solve
    •  
    • (
      y
      +
      6
      )
      =
      0
      (
      y
      +
      5
      )
      =
      0
  • (
    (
    7
    )
    ,
    5
    )
  • No solution
  • (
    (
    9
    )
    ,
    3
    )
  • Infinite solutions
  • (
    (
    7
    )
    ,
    7
    )
Question 5
5.
    • Which of the following equations satisfy the given points
      • (
        (
        2
        )
        ,
        (
        37

        7
        )
        )
      • ,
      • (
        (
        1
        )
        ,
        (
        47

        7
        )
        )
      • ,
      • (
        0
        ,
        (
        57

        7
        )
        )
      • ,
      • (
        1
        ,
        (
        67

        7
        )
        )
      • ,
      • (
        2
        ,
        (
        11
        )
        )
    • ?
  • x
    =
    (
    10

    7
    y
    25

    7
    )
  • (
    35
    x
    +
    48
    y
    30
    )
    =
    0
  • (
    10
    x
    7
    y
    +
    5
    )
    =
    0
  • y
    =
    (
    10

    7
    x
    57

    7
    )
  • y
    =
    (
    1
    )
Question 6
6.
    • Which of the displayed lines represent the equation
    • (
      5
      x
      5
      y
      +
      20
      )
      =
      0
    • ?
      • line with point
      • M
      • line with point
      • Q
      • line with point
      • O
      • line with point
      • P
      • line with point
      • N
Question 7
7.
    • Solve the following pair of equations :
    •    
       
       
      5

       
       
      (
      x
      +
      y
      )
        +  
       
       
      8

       
       
      (
      x
      y
      )
      =
       
       
      (
      39
      )
    •  
       
      11

       
       
      (
      x
      +
      y
      )
        +  
       
       
      3

       
       
      (
      x
      y
      )
      =
       
       
      24
  • (
    1
    ,
    1

    3
    )
  • (
    0
    ,
    1

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

    3
    )
  • (
    0
    ,
    (
    -1

    3
    )
    )
Question 8
8.
    • Find the set of points satisfying the equation
    • x
      =
      (
      2
      )
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      0
      )
    • ,
    • (
      (
      2
      )
      ,
      1
      )
    • ,
    • (
      0
      ,
      4
      )
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      1
      )
    • ,
    • (
      (
      2
      )
      ,
      2
      )
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      0
      )
    • ,
    • (
      (
      3
      )
      ,
      2
      )
    • ,
    • (
      (
      2
      )
      ,
      2
      )
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      0
      )
    • ,
    • (
      (
      2
      )
      ,
      1
      )
    • ,
    • (
      (
      2
      )
      ,
      2
      )
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      (
      4
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      1
      )
    • ,
    • (
      (
      2
      )
      ,
      2
      )
Question 9
9.
The equation of the x-axis is
a)
    • x
      =
      y
b)
    • y
      =
      0
c)
    • x
      =
      0
d)
    • y
      =
      1
e)
    • x
      =
      1
  • {c,b}
  • {a,b}
  • {b}
  • {d,e,b}
Question 10
10.
    • Find the set of points satisfying the equation
    • (
      8
      x
      +
      8
      y
      )
      =
      0
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      1
      )
    • ,
    • (
      2
      ,
      2
      )
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      1
      ,
      1
      )
    • ,
    • (
      2
      ,
      2
      )
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      1
      ,
      (
      1
      )
      )
    • ,
    • (
      1
      ,
      1
      )
    • ,
    • (
      2
      ,
      2
      )
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      0
      ,
      2
      )
    • ,
    • (
      2
      ,
      2
      )
    • (
      (
      2
      )
      ,
      (
      2
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      1
      )
      )
    • ,
    • (
      0
      ,
      0
      )
    • ,
    • (
      1
      ,
      1
      )
    • ,
    • (
      4
      ,
      4
      )