A line intersects the points (-22,-14) and (-18,-12).What is the slope-intercept equation for this line?

Answer 1

y increases 2 as x increases 4, slope = 2/4 = 1/2

y=mx + b

y =x/2 + b

-12 = -18/2 + b

b = -12 + 9 = -3

y=(1/2)x - 3