1. What type of graph is best for showing parts of a whole?
- ABar Graph
- BPie Chart
- CLine Graph
- DHistogram
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Answer: B) Pie Chart
Pie charts are used to show parts of a whole because they visually represent percentages of a total.
Class 8 Introduction to Graphs — practice questions with answers
Coordinate Geometry · 5 sample questions from the school syllabus. Try each one, then open the answer and the worked solution.
2. What does the point (0, 0) represent on a graph?
- AThe origin
- BThe highest point
- CThe end of the x-axis
- DA point 1 unit from each axis
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Answer: A) The origin
The point (0, 0) is called the origin, where the x-axis and y-axis intersect.
3. A pie chart of a budget shows: Food 30%, Rent 40%, Savings 20%, Others 10%. Which item gets the largest share?
- AFood
- BRent
- CSavings
- DOthers
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Answer: B) Rent
Rent has the largest share at 40%, more than Food (30%), Savings (20%) and Others (10%).
4. A line graph shows a shop's daily sales (in rupees): Mon 200, Tue 250, Wed 250, Thu 300, Fri 350. Between which two consecutive days did sales stay the same?
- AMonday and Tuesday
- BTuesday and Wednesday
- CWednesday and Thursday
- DThursday and Friday
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Answer: B) Tuesday and Wednesday
Sales were 250 rupees on both Tuesday and Wednesday, so they remained the same; the line is flat between these two days.
5. A graph of a worker's wages shows wage = 50 x (number of hours). This is a straight line through the origin. How much does the worker earn for 6 hours of work (in rupees)?
- A300
- B600
- C270
- D330
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Answer: A) 300
Wage = 50 x hours = 50 x 6 = 300 rupees. Because the graph is linear through the origin, wages are directly proportional to hours worked.
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