Question

Line ab contains the points a(-2,3) and b(4,5). Line ab has a slope that is

Answer 1

Given two points $A = (A_x, A_y),\ B = (B_x,B_y)$, the slope of the line passing through the two points is

$m = \dfrac{A_y-B_y}{A_x-B_x}$

So, in your case, you have

$m = \dfrac{3-5}{-2-4} = \dfrac{-2}{-6} = \dfrac{1}{3}$