NCERT Class 8 Mathematics Solutions: Chapter 15 – Introduction to Graph Exercise 15.1 Part 5 (For CBSE, ICSE, IAS, NET, NRA 2022)
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1. Use the tables below to draw linear graphs.
(a) The number of days a hill side city received snow in different years.
| Year | ||||
| Days |
(b) Population (in thousands) of men and women in a village in different years.
| Year | 2003 | 2004 | 2005 | 2006 | 2007 |
| No. of Men | 12 | 12.5 | 13 | 13.2 | 13.5 |
| No. of Women | 11.3 | 11.9 | 13 | 13.6 | 12.8 |
Answer:
(a)
(b)
NCERT Class 8 Mathematics Solutions: Chapter 15 – Introduction to Graph Exercise 15.1 Part 5
1. A courier-person cycles from a town to a neighbouring suburban area to deliver a parcel to a merchant. His distance from the town at different times is shown by the following graph.
(a) What is the scale taken for the time axis?
(b) How much time did the person take for the travel?
(c) How far is the place of the merchant from the town?
(d) Did the person stop on his way? Explain.
(e) During which period did he ride fastest?
Answer:
(a)
(b) The person took hours for the travel.
(c) It was far from the town.
(d) Yes, this has been indicated by the horizontal part of the graph.
He stayed from .
(e) He ride the fastest between .
1. Can there be a time-temperature graph as follows? Justify your answer.
(i)
(ii)
(iii)
(iv)
Answer:
(i) It is showing the increase in temperature.
(ii) It is showing the decrease in temperature.
(iii) The graph figure is not possible since temperature is increasing very rapidly which is not possible.
(iv) It is showing constant temperature.