Question

What is an equation of the line that passes through the points (3, 8) and (1,0)?

Answer 1

y = 4x - 4

Explanation:

first, find the slope:

y2 - y1/ x2 -x1

8 - 0/ 3 - 1 = 4

no plug in your slope and one of the points to find the b:

y = mx+b

0 = 4 (1) + b

b= -4

so

y = 4x - 4