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Chapter 2: Q57. (page 80)

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

7,2, 5,6

Short Answer

Expert verified

The slope of the required straight line is -2.

Step by step solution

01

– State the concept

The slope of a straight-line passing through the points h,k and a,b is given as m=b-ka-h.

02

– List the given data

It is given that the line passes through 7,2 and 5,6.

Then, h,k=7,2 and a,b=5,6.

03

– Find the slope

Put h,k=7,2and a,b=5,6in m=b-ka-hto get,

m=6鈭�25鈭�7=4鈭�2=鈭�42=鈭�2

So, m=-2

So, the slope of the required straight line is -2.

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