What is an equation in slope-intercept form for the line that passes through the points (1, -3) and (3, 1)?

Question

a.) y= 3x + 1
b.) y= x - 3
c.) y= 2x + 5
d.) y= 2x - 5

Answer 1

(1, -3), (3, 1).
m = (1-(-3)/(3-1) = 4/2 = 2.

Y = mx + b.
-3 = 2*1 + b,
b = -5.
Y = 2x - 5.