Linear Equations In Two Variables CBSE Questions & Answers

Linear Equations In Two Variables

This is Mathematics Class 09 Linear Equations in Two Variables CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The graph of y = 4x will
  • A
    none of these
  • B
    intersect y-axis
  • C
    intersect x-axis
  • D
    pass through the origin
    Correct
2
For what value of ‘k’, x = 2 and y = -1 is a solution of x + 3y – k = 0?
  • A
    -2
  • B
    1
  • C
    2
  • D
    -1
    Correct
3
Which of the following pair is a solution of the equation 3x – 2y = 7?
  • A
    (1, -2)
    Correct
  • B
    (1, 5)
  • C
    (5, 1)
  • D
    (-2, 1)
4
Which of the following is a linear equation in two variables?
  • A
    \({{\text{x}}^{\text{2}}} = {\text{ 5x }} + {\text{ 3}}\)
  • B
    x + 5 = 8
  • C
    2x – 5y = 0
    Correct
  • D
    \({\text{5x }} = {\text{ }}{{\text{y}}^{\text{2}}} + {\text{ 3}}\)
5
x = 5 and y = -2 is the solution of the linear equation
  • A
    x + 3y = 1
  • B
    2x – y = 12
    Correct
  • C
    2x + y = 9
  • D
    3x + y = 0
6
The cost of a note book is twice the cost of a pen. The equation to represent the above statement is
  • A
    x – 2y = 0
    Correct
  • B
    x = 3y
  • C
    2x = 3y
  • D
    none of these
7
The force applied on a boy is directly proportional to the acceleration produced in the body. The equation to represent the above statement is
  • A
    y + x = 0
  • B
    y = kx
    Correct
  • C
    none of these
  • D
    y = x
8
The point which lies on y-axis at a distance of 3 units in the negative direction of y-axis is
  • A
    (0, -3)
    Correct
  • B
    (0, 3)
  • C
    (3, 0)
  • D
    (-3, 0)
9
The point which lies on y-axis at a distance of 6 units in the positive direction of y-axis is
  • A
    (0, -6)
  • B
    (0, 6)
    Correct
  • C
    (-6, 0)
  • D
    (6, 0)
10
The point which lies on x-axis at a distance of 4 units in the negative direction of x-axis is
  • A
    (0, -4)
  • B
    (4, 0)
  • C
    (-4, 0)
    Correct
  • D
    (0, 4)
11
The point which lies on x-axis at a distance of 3 units in the positive direction of x-axis is
  • A
    (0, 3)
  • B
    (3, 0)
    Correct
  • C
    (-3, 0)
  • D
    (0, -3)
12
The graph of the line x = -2 passes through
  • A
    (0, 4)
  • B
    (-2, 3)
    Correct
  • C
    (3, -2)
  • D
    (-1, 4)
13
The graph of the line y = -6 passes through
  • A
    (-1, 4)
  • B
    (4, -6)
    Correct
  • C
    (-6, 4)
  • D
    (0, 4)
14
Which of the following is not a solution of 2x – 3y = 12?
  • A
    (2, 3)
    Correct
  • B
    (6, 0)
  • C
    (0, -4)
  • D
    (3, -2)
15
If x = 3 and y = -2 satisfies 5x – y = k, then the value of ‘k’ is
  • A
    12
  • B
    -2
  • C
    3
  • D
    17
    Correct