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Introduction to Graphs — Class 8 CBSE Mathematics MCQs with Solutions
Free Class 8 CBSE Mathematics Introduction to Graphs MCQs with step-by-step solutions. Practise online on Prepizo — no login needed.
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Sample questions with solutions
Q1 — easy
In the point (4, 7), the number 4 is the:
A. ordinate
B. abscissa ✓ Correct
C. origin
D. slope
Solution: The x-coordinate is called the abscissa.
Q2 — easy
A point on the x-axis has y-coordinate:
A. 0 ✓ Correct
B. 1
C. always positive
D. always negative
Solution: Points on the x-axis have y = 0.
Q3 — easy
Which graph best shows how a quantity changes over time?
A. pie chart
B. line graph ✓ Correct
C. pictograph
D. bar graph of one value
Solution: A line graph shows change over time.
Q4 — hard
A distance–time graph becomes steeper. This means the object is:
A. stopping
B. moving slower
C. moving faster ✓ Correct
D. moving backwards
Solution: A steeper slope means greater speed.
Q5 — hard
The point (0, −4) lies:
A. on the x-axis
B. on the y-axis below the origin ✓ Correct
C. in quadrant III
D. in quadrant IV
Solution: x = 0 places it on the y-axis; negative y is below the origin.
Q6 — hard
A line passes through (0,0) and (3,6). What is the value of y when x = 5?
A. 8
B. 10 ✓ Correct
C. 11
D. 12
Solution: The ratio y : x is 2 : 1, so y = 10.
Q7 — medium
A point lies on the y-axis, 5 units above the origin. Its coordinates are:
A. (5,0)
B. (0,5) ✓ Correct
C. (5,5)
D. (0,−5)
Solution: On the y-axis x = 0.
Q8 — medium
A car travels at a constant speed. Its distance-time graph is a:
A. curve
B. straight line ✓ Correct
C. horizontal line
D. circle
Solution: Constant speed gives a straight-line graph.
Q9 — medium
If a distance–time graph is a horizontal line, the object is:
A. speeding up
B. slowing down
C. at rest ✓ Correct
D. moving backwards
Solution: No change in distance means it is stationary.