Question

Use the slope formula to find the missing coordinate.
m =
7. T(13, 2), WL,_-5)

Answer 1

WL = 12

Explanation:

The slope is given by

m = (y2-y1)/(x2-x1)

7 = (-5 -2)/(WL - 13)

Multiply each side by (WL - 13)

7 (WL - 13) = -5-2

7 (WL - 13) = -7

Divide each side by 7

(WL - 13) = -1

Add 13 to each side

WL - 13+13 = -1 +13

WL = 12