Question

If the gradient of a line joining the points (-2, 6) and (5, b) is 14.
Find the value of b.

Answer 1

b = 104

Explanation:

Slope is expressed as;

m = y2-y1/x2-x1

14 = b - 6/5-(-2)

14 = b - 6/5+2

14 = b-6/7

Cross multiply

b-6 = 14 * 7

b - 6 = 98

b = 98 + 6

b = 104