Question

What is the slope-intercept form of the equation of the line that passes through the points (7,-5) and (3,- 9)?

y=x-4
y = x + 12
y=x-12
y = x + 5

Answer 1

y = x - 12

Explanation:

slope = (-9 - (-5))/(3 - 7) = -4/(-4) = 1

y = mx + b

y = x + b

-5 = 7 + b

b = -12

y = x - 12