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If the line segment connecting point P (5,2) to point R (3,6) is rotated 90 degrees counter clockwise about point R what is the slope of the original segment PR?

User NOSAE
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Given:
P (5, 2)
R (3, 6)

finding the slope of a straight line.

m = y1 - y2 / x1-x2 = (2-6) / (5-3) = -4 / 2 = -2

The slope of the original segment PR is -2.

I graphed the changes. The new coordinate of P is (7,8)
If the line segment connecting point P (5,2) to point R (3,6) is rotated 90 degrees-example-1
User Amy Murphy
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