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Class 9 Maths Chapter 4 Linear Equations In Two Variables Quiz 5 (25 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. 3x+10 = 0 will have:

Correct Answer: A) Unique solution.

2. If x and y are both positive solutions of equation ax+by+c=0, always lie in

Correct Answer: A) First quadrant.

3. The line represented by the equation x + y = 16 passes through (7, 9). How many more lines pass through this point

Correct Answer: C) Infinite.

4. Identify the linear equation whose line will pass through the origin.

Correct Answer: D) X + kh = 0.

5. Standard of a linear equation in two variables is

Correct Answer: B) Ax+by+c=0.

6. A line parallel to y-axis and passing through which of the following point

Correct Answer: C) (-4, 0).

7. Number of solutions of linear equation in two variable

Correct Answer: C) Many or infinite.

8. X = 5, y = 2 is a solution of the linear equation

Correct Answer: C) X + y = 7.

9. X=2, y=1 is the solution of 2x+3y=k then k=

Correct Answer: B) 7.

10. There is a 3-digit number lying between 100 and 500. The middle digit is zero and the sum of the other digits is 12. On reversing the digits, the number so formed is exceeding the original number by 594. Find the original number.

Correct Answer: C) 309.

11. Standard form of 2x+6=5y is

Correct Answer: C) +I = 0.

12. X + 6 = 0 is the equation of a line

Correct Answer: B) Parallel to y-axis and passing through (-6, 0).

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

Correct Answer: B) Remains the same.

14. Which of the coordinate pairs is a solution to the equation 2x-y + 10

Correct Answer: D) (5, 0).

15. Which statement is true about the system of linear equations?

Correct Answer: D) The system has no solution.

16. Any point on the x-axis is of the form

Correct Answer: C) (x, 0).

17. Find the points where the graph of equation 2x + 4y = 12, cuts the x-axis at

Correct Answer: C) (6, 0).

18. Give the geometric representations of (4/5)y-9 = (9/5)y-3 as an equation(i) in one variable(ii) in two variablesWere you able to complete this question?

Correct Answer: A) Yes.

19. Solve by elimination:4x+4y=43x+4y=10

Correct Answer: B) (-6, 7).

20. The cost of 2 kg of apples and 1 kg of grapes on a day was found to be Rs.160. A linear equation in two variables to represent the above data is if the amount of apples is represented by "x":

Correct Answer: A) 2x + y = 160.

21. What is ..... the set of two or more linear inequalities involving the same variables x and y.

Correct Answer: B) System of Linear Inequalities.

22. Using the given system of linear equations, determine the number of possible solutions by observation.

Correct Answer: C) Infinite Solutions.

23. 6x + y =-13x + y =-4

Correct Answer: D) (1, -7).

24. Which of the following graph is passing through the origin

Correct Answer: C) Y = x.

25. (3, 2) is a solution of 5x-7y =k. find value of k

Correct Answer: A) 1.

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