Question

Find x so that the distance between the points (1,2) and
(x, -10) is 13

Answer 1

x = -4 or 6

Explanation:

12^2 + (1-x)^2 = 13^2

(1-x)^2= 13^2 - 12^2

(1-x)^2= 25

1-x = 5

x = -4 or 6