Linear Equation In Two Variables Class 9

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Quiz 1 Made by Mrs. Pintu Prasad

1. The linear equation 3x – y = x – 1 has

2 points

:(A) A unique solution

(B) Two solutions

(D) No solution

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2. A linear equation in two variables is of the form ax + by + c = 0, where

2 points

(A) a ≠ 0, b ≠ 0

(B) a = 0, b ≠ 0

(D) a = 0, c = 0

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3. Any point on the y-axis is of the form

2 points

(A) (x, 0)

(B) (x, y)

(D) ( y, y)

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4. The equation 2x + 5y = 7 has a unique solution, if x, y are

2 points

(A) Natural numbers

(B) Positive real numbers

(D) Rational numbers

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5.The graph of the linear equation 2x + 3y = 6 cuts the y-axis at the point

2 points

(A) (2, 0)

(B) (0, 3)

(D) (0, 2)

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6. Any solution of the linear equation 2x + 0y + 9 = 0 in two variables is of the form

2 points

(A) (–9/2 , m)

(B) (n, – 9/2 )

(D) (– 9, 0)

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7. The equation x = 7, in two variables, can be written as

2 points

(A) 1 . x + 1 . y = 7

(B) 1. x + 0. y = 7

(D) 0 . x + 0 . y = 7

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8. Any point on the line y = x is of the form

2 points

(A) (a, a)

(B) (0, a)

(D) (a, – a)

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9. . The graph of y = 6 is a line

2 points

(A) parallel to x-axis at a distance 6 units from the origin

(B) parallel to y-axis at a distance 6 units from the origin

.(D) making an intercept 6 on both the axes.

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10. If we multiply or divide both sides of a linear equation with a non-zero number, thenthe solution of the linear equation

2 points

(A) Changes

(B) Remains the same

(D) Changes in case of division only

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