Bharadwaj :

What does this figure represent?

Meena :

It is a straight line.

Bharadwaj :

Can you identify some more points on this line?
Can you help Meena to find some more points on this line?
.....................,....................,.................,...............,
And in this line, what is AB called ?
AB is a line segment

pic-18
Slope of the straight line

You might have seen a slide in a park. Two slides have been shown here. On which of
them can you slide faster?

pic-19

Obviously your answer will be second. Why?
observe these lines.



page no:180

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