ICSE Board Practice

ICSE Grade IX - Linear Equations and Simultaneous Linear Equations
Question 1
1.
    • Find the set of points satisfying the equation
    • y
      =
      (
      2
      x
      13
      )
    • (
      (
      2
      )
      ,
      (
      9
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      11
      )
      )
    • ,
    • (
      1
      ,
      (
      14
      )
      )
    • ,
    • (
      1
      ,
      (
      15
      )
      )
    • ,
    • (
      2
      ,
      (
      17
      )
      )
    • (
      (
      2
      )
      ,
      (
      9
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      11
      )
      )
    • ,
    • (
      0
      ,
      (
      13
      )
      )
    • ,
    • (
      1
      ,
      (
      15
      )
      )
    • ,
    • (
      4
      ,
      (
      15
      )
      )
    • (
      (
      2
      )
      ,
      (
      9
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      11
      )
      )
    • ,
    • (
      0
      ,
      (
      13
      )
      )
    • ,
    • (
      0
      ,
      (
      14
      )
      )
    • ,
    • (
      2
      ,
      (
      17
      )
      )
    • (
      (
      2
      )
      ,
      (
      9
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      11
      )
      )
    • ,
    • (
      (
      2
      )
      ,
      (
      15
      )
      )
    • ,
    • (
      1
      ,
      (
      15
      )
      )
    • ,
    • (
      2
      ,
      (
      17
      )
      )
    • (
      (
      2
      )
      ,
      (
      9
      )
      )
    • ,
    • (
      (
      1
      )
      ,
      (
      11
      )
      )
    • ,
    • (
      0
      ,
      (
      13
      )
      )
    • ,
    • (
      1
      ,
      (
      15
      )
      )
    • ,
    • (
      2
      ,
      (
      17
      )
      )
Question 2
2.
    • Solve
    •  
    • (
      10
      y
      10
      )
      =
      0
      (
      y
      +
      5
      )
      =
      0
  • (
    1
    ,
    (
    5
    )
    )
  • No solution
  • (
    1
    ,
    (
    1
    )
    )
  • Infinite solutions
  • (
    3
    ,
    1
    )
Question 3
3.
The equation of the x-axis is
a)
    • y
      =
      0
b)
    • x
      =
      0
c)
    • x
      =
      1
d)
    • x
      =
      y
e)
    • y
      =
      1
  • {c,a}
  • {b,a}
  • {a}
  • {d,e,a}
Question 4
4.
    • Which of the following equations is not the same as
    • (
      5
      x
      8
      )
      =
      (
      4
      )
  • (
    4
    x
    10
    )
    =
    (
    x
    6
    )
  • (
    6
    x
    6
    )
    =
    (
    x
    2
    )
  • (
    6
    x
    8
    )
    =
    (
    x
    4
    )
  • (
    4
    x
    8
    )
    =
    (
    x
    4
    )
  • (
    4
    x
    8
    )
    =
    (
    x
    4
    )
Question 5
5.
    • Which of the following equations is not equivalent to
    • (
      7
      x
      8
      )
      =
      4
      x
  • (
    44
    x
    )
    =
    32
  • 44
    x
    =
    (
    32
    )
  • 22
    x
    =
    (
    16
    )
  • (
    11
    x
    )
    =
    8
  • (
    11
    x
    )
    =
    7
Question 6
6.
    • Solve the equation
    • (
      4
      x
      +
      3
      )
      =
      0
  • 3

    2
  • 3

    4
  • 1

    4
  • 1

    2
  • 5

    4
Question 7
7.
    • Which of the following equations is not the same as
    • (
      x
      7
      )
      =
      7
  • (
    4
    x
    28
    )
    =
    28
  • (
    5
    x
    35
    )
    =
    35
  • (
    2
    x
    +
    14
    )
    =
    (
    14
    )
  • (
    3
    x
    21
    )
    =
    21
  • (
    2
    x
    14
    )
    =
    9
Question 8
8.
    • Solve :
    •  
       
      2

       
       
      (
      8
      x
      +
      5
      )
      =
       
       
      1

       
       
      (
      8
      x
      +
      7
      )
  • 11

    8
  • 7

    8
  • 11

    10
  • 7

    6
  • 9

    8
Question 9
9.
    • Solve the following pair of equations :
    • (
      4
      x
      3
      y
      )

      x
      y
      =
      0
    • (
      3
      x
      +
      y
      )

      x
      y
      =
      -13
  • (
    (
    -1

    2
    )
    ,
    (
    -1

    3
    )
    )
  • (
    (
    -1

    4
    )
    ,
    (
    -1

    5
    )
    )
  • (
    (
    -3

    4
    )
    ,
    (
    -1

    3
    )
    )
  • (
    (
    -1

    4
    )
    ,
    1

    3
    )
  • (
    (
    -1

    4
    )
    ,
    (
    -1

    3
    )
    )
Question 10
10.
    • The L.H.S of the equation
    • (
      7
      x
      1
      )
      =
      (
      4
      x
      +
      8
      )
    • is
  • (
    7
    x
    3
    )
  • (
    7
    x
    1
    )
  • (
    4
    x
    +
    8
    )
  • (
    6
    x
    1
    )
  • (
    7
    x
    +
    1
    )