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)
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.
Distance (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 since its start?
(c) Interest on deposits for a year:
Deposit (in Rs)
1000
2000
3000
4000
5000
Simple interest (in Rs)
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 be deposited?