Class 8, Maths, Chapter 15, Exercise 15.3 Solutions
Q.1. Draw the graphs for the following tables of values, with suitable scales on the axes.
(a) Cost of apples
(b) Distance travelled by a car
(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 since it’s start?
(c) Interest on deposits for a year.
(i) Does the graph pass through the origin?
(ii) Use the graph to find the interest on ` 2500 for a year.
(iii) To get an interest of ₹ 280 per year, how much money should be deposited?
Ans:
(a) Cost of apples
(b) Distance travelled by a car
(i) the car covered 20 km during the period 7.30 am to 8 am.
(ii) The time was 7:30 am when the car had covered a distance of 100 km since it’s start?
(c) Interest on deposits for a year.
(i) Does the graph pass through the origin?
(ii) Use the graph to find the interest on ₹2500 for a year.
(iii) To get an interest of ₹280 per year, how much money should be deposited?
Ans:
(c) Interest on deposits for a year.
(i) yes, the graph passes through the origin.
(ii)
the interest on ₹2500 for a year is ₹200
(iii)
To get an interest of ₹280 per year, ₹3500 money should be deposited.
Q.2. Draw a graph for the following
Is it a linear graph?
Is it a linear graph?
Ans:
Yes, it is linear graph.
No, it is not a linear graph.