Class 9 Maths Chapter 4 | Linear Equations In Two Variables MCQ
CBSE CLASS 9 MATHEMATICS MCQ
Multiple Choice Questions / Linear Equations in Two Variables – Chapter 4
1. Any equation of the form ax + by + c = 0 where a, b and c are real numbers and a and b are not both zero is called a ————-
A. Linear equations in two variables
B. Quadratic equations in two variables
C. Cubic equation in two variables
2. The equation y = 2 in two variables can be written as ——————
A. 0 .x + 1 .y = 2
B. 1. x + 0. y = 2
C. 1. x + 0 .y = 0
3. A linear equation in two variables has ———– solutions.
A. One solution
B. Finite solutions
C. Infinitely many solutions
4. Which of the following is not a solution of the equation 2x + y = 7
A. (0, 7)
B. (1, 4)
C. (2, 3)
5. The value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k is ———
A. 5
B. 6
C. 7
6. The graph of the equation of the form y = kx is a line which always passes through the ————-
A. x axis
B. y axis
C. Origin
7. If the point (3, 4) lies on the graph of the equation 3y = ax + 7, then the value of a is ————-
A. 3/5
B. 5/3
C. 3/7
8. The graph of every linear equation in two variables is a ——–
A. Straight line
B. Curved figure
C. open curve
9. The graph of x = a is a straight line parallel to the ——— axis.
A. x axis
B. y axis
C. None of these
10. The graph of y = a is a straight line parallel to the ——— axis.
A. x axis
B. y axis
C. None of these
11. Any point on the x axis is of the form ————
A. (x, 0)
B. (0, x)
C. (0, y)
12. The equation of y axis is of the form —————
A. y = 0
B. x = 0
C. x = 1
13. The graph of y = 3 is a line ————-
A. Parallel to x axis at distance 3 units from the origin.
B. Parallel to y axis at distance 3 units from the origin.
C. None of these
14. x = 4, y=3 is a solution of the linear equation:
A. 2x + y = 17
B. 2x + 3y = 17
C. x + 3y = 17
15. Solution of the equation 3x – 5 = 2x + 1is —————-
A. 5
B. 6
C. 7
ANSWERS:
1. Linear equations in two variables
2. 0. x + 1. y = 2
3. Infinitely many solutions
4. (1, 4)
5. 7
6. Origin
7. 5/3
8. Straight line
9. y axis
10. x axis
11. (x, 0)
12. x = 0
13. Parallel to x axis at distance 3 units from the origin
14. 2x + 3y = 17
15. 6
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