Book: NCERT - Mathematics
Chapter: 15. Introduction to Graphs
Subject: Maths - Class 8th
Q. No. 2 of Exercises 15.3
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Draw a graph for the following.
(i) Is it a linear graph?
Side of square (in cm) | 2 | 3 | 4 | 5 | 6 |
Perimeter (in cm) | 4 | 9 | 16 | 25 | 36 |
(ii) Is it a linear graph?
Side of square (in cm) | 2 | 3 | 4 | 5 | 6 |
Area (in cm2) | 4 | 9 | 16 | 25 | 36 |
i. The given data can be represented in the form of graph as:
Yes, it is a linear graph.
ii. The given data can be represented in the form of graph as:
Yes, it is a linear graph.
Chapter Exercises
More Exercise Questions
Draw the graphs for the following tables of values, with suitable scales on the axes.
A. Cost of apples
Number of apples | 1 | 2 | 3 | 4 | 5 |
Cost (in Rs) | 5 | 10 | 15 | 20 | 25 |
B. Distance travelled by a car
Time (in hours) | 6 a.m. | 7 a.m. | 8 a.m. | 9 a.m. |
Distances (in km) | 40 | 80 | 120 | 160 |
(i) How much distance did the car cover during the period 7.30 a.m. to 8 a.m?
(ii) What was the time when the car had covered a distance of 100 km sinceit’s start?
C. Interest on deposits for a year.
Deposit (inRs) | 1000 | 2000 | 3000 | 4000 | 5000 |
Simple Interest (in Rs) | 80 | 160 | 240 | 320 | 400 |
(i) Does the graph pass through the origin?
(ii) Use the graph to find the interest on Rs 2500 for a year.
(iii) To get an interest of Rs 280 per year, how much money should bedeposited?
Draw a graph for the following.
(i) Is it a linear graph?
Side of square (in cm) | 2 | 3 | 4 | 5 | 6 |
Perimeter (in cm) | 4 | 9 | 16 | 25 | 36 |
(ii) Is it a linear graph?
Side of square (in cm) | 2 | 3 | 4 | 5 | 6 |
Area (in cm2) | 4 | 9 | 16 | 25 | 36 |