Question

"Question 7 Can there be a time temperature graph as follows? Justify you’re answer: (i) (ii) (iii) (iv)

Class 8 Introduction to Graphs Page 239"

Answer 1

Graphs are visual representations of data collected. In most cases, the data exists in the form of a table. In many cases, the table itself is displayed.

There are many different types of graphs.
a.Bar graph.
b.Pie graph or pie chart.
c.Line graph.

A linear graph is different from a line graph, in a linear graph, the rest of points on the graph line up in an orderly manner. A linear graph is a graph that consists of a single straight line segment graph obtained by joining the plotted points is a line. Such graphs are called linear graphs.

A line graph displays data that changes continuously over period of time. A line graph which is a whole unbroken line is called a linear graph. To draw such a line we need to locate some points on the graph sheet

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Solution:

i)

This can be a time temperature graph as a temperature can increase with increase in time.

ii)

This can be a time temperature graph as a temperature can decrease with the decrease in time.

iii)

This cannot be a time temperature graph since different temperature at the same time are not possible.

Iv)

This can be a time temperature graph as same temperature at different times is possible.

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Hope this will help you...