Question

Write the equation of the line that passes through (-1,0) and (1,4)

Answer 1

y = 2x + 2

Explanation:

find slope first

(4-0)/(1- -1) = 4/2

m=2

then use one of the points to solve for b

0 = 2(-1) + b, so b = 2

y = 2x + 2