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Chapter 2: Q25. (page 72)

Find the slope of the line that passes through each pair of points.

a,2,a,-2

Short Answer

Expert verified

The slope of the line is 鈭�.

Step by step solution

01

Step 1- Given information

A pair of points (a,2),(a,-2).

02

Step 2- Formula used

The slope formula of a line is:

m=y2-y1x2-x1

Where, m is slope of the line which is passes through the points (x1,y1),(x2,y2)andx1鈮�x2.

03

Step 3- To find the slope 

Here, (x1,y1)=(a,2)and (x2,y2)=(a,-2)

So, m=y2-y1x2-x1

鈬�m=-2-2a-a鈬�m=-40鈬�m=鈭�

Hence, the slope of the line is 鈭�.

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