Question

Write an equation in slope intercept form of the line that passes through the points (4,13) and (8,18)

A. y=2.5x+3
B. y=1.5x+7
C. y=2x+5
D. y=1.25x+8

Answer 1

y=5/4x+8 Answer Choice D).

Explanation:

m=(y2-y1)/(x2-x1)

m=(18-13)/(8-4)

m=5/4

y-y1=m(x-x1)

y-13=5/4(x-4)

y-13=5/4x-20/4

y-13=5/4x-5

y=5/4x-5+13

y=5/4x+8