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Introduction To Graphs

Question
CBSEENMA8003505
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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?

Solution
(a) The time is taken along the x-axis. The scale along x-axis is 4 units = 1 hour 
(b) Total travel time = 8 a.m. to 11:30 a.m. = 3 1 half space hours
(c) Distance of the merchant from the town = 22 km.
(d) Yes, the stopage time = 10:00 a.m. to 10.30 a.m.
(e) His fast ride is between 8:00 a.m. and 9:00 a.m.

Some More Questions From Introduction to Graphs Chapter

Population (in thousands) of men and women in a village in different years.

Can there be a time-temperature graph as follows? Justify your answer.

Ratana fell sick. Her doctor maintained a record of her hody temperature, taken every four hours. It is shown in the following time-temperature graph.
(a) During which period the temperature showed a rising trend?
(b) During which period the temperature showed a downward trend?
(c) At what time the temperature was highest?
(d) At what time the temperature was lowest?

Plot the following points on a graph sheet. Verify if they lie on a line:
(a) A (4, 0), B(4, 2), C(4, 6), D(4, 2.5)
(b) P(1, 1), Q(2, 2), R(3, 3), S(4, 4)
(c) K(2, 3), L(5, 3), M(5, 5), N(2, 5)

Draw the line passing through (2, 3) and (3, 2). Find the coordinates of the points at which this line meets the x-axis and y-axis.

Write the coordinates of the vertices of each of these adjoining Figures.

State whether True or False. Correct that are false.

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