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Mathematics
9th
grade
9th CBSE Ch.4 Linear Equations in Two Variables
20 questions
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- 1. Multiple Choice
The equation y = 3x + 5 has _____
A unique solution
Only two solutions
Three solutions
Infinitely many solutions
- 2. Multiple ChoiceIf (2 ,0) is a solution of the linear equation 2x + 3y = k, then the value of k is_____4562
- 3. Multiple ChoiceThe graph of the linear equation 2x + 3y = 6 cuts the y - axis at the point _____(2 ,0)(0 ,3)(3 ,0)(0, 2)
- 4. Multiple ChoiceIf we multiply or divide both sides of a linear equation with a non-zero number, then the solution of the linear equation____ChangesRemains the sameChanges in case of multiplication onlyChanges in case of division only
- 5. Multiple Choice
Is x = -3 vertical or horizontal?
vertical
horizontal
neither
- 6. Multiple Choice
The solution of equation x-2y = 4 is:
a. (0,2)
b. (2,0)
c. (4,0)
d. (1,1
- 7. Multiple Choice
The graph of linear equation x + y = 2, cuts the y-axis at:
a. (2,0)
b. (0,2)
c. (0,1)
d. (1,1)
- 8. Multiple Choice
Any point on the line x = y is of the form:
a. (k, -k)
b. (0, k)
c. (k, 0)
d. (k, k)
- 9. Multiple Choice
Equation of the line parallel to x-axis and 6 units above the origin is:
a) x = 6
b) x = –6
c)y = 6
d)y = –6
- 10. Multiple Choice
The graph of which of the following equations passes through the origin?
(i) y = 2x + c
(ii) y = 2x – c
(iii) y = 2x
- 11. Multiple Choice
The geometrical representation of a linear equation
Straight line
Curve
Parabola
Either (b) or (c)
- 12. Multiple ChoiceHow can you tell if a point is a solution to a system?It makes the first equation true.The (x,y) coordinates satisfy both equationsIt makes logical senseIt makes neither equation negative
- 13. Multiple Choice
What is a Linear equation
Equation with degree 1
Equation with degree 3
Equation with degree 7
Equation with degree 2
- 14. Multiple Choice
How many solutions does a Linear equation in two variable would have?
Only one
Two solutions
Five solutions
Infinity
- 15. Multiple Choice
The general form of linear equation in two variable is
ax+bx+c=0
ax+by+c=1
ax+bx+c=1
ax+by+c=0
- 16. Multiple Choice
The graph of x=3 is a line
Parallel to the x-axis
Parallel to y-axis
Data not enough
- 17. Multiple Choice
Find the value of a, if x=1, y=2 is a solution of 4x+8y=a
a=0
a=9
a=16
a=20
- 18. Multiple Choice
The solution of equation x - 2y = 4 is
(0,2)
(2,0)
(4,0)
(1,1)
- 19. Multiple Choice
Construct linear equation for the following statement:
Two numbers are in the ratio 5 : 7 and sum of the numbers is 120
5x + 7x = 120
5x - 7x =120
x ⁄ 5 + x ⁄ 7 = 120
None of the above
- 20. Multiple Choice
If 2x + 4 = x - 5, then x = ______
9
-9
1
-1
- Answer choicesTagsAnswer choicesTags