Question

What is the equation in point-slope form of the line passing through (−2, 0) and (2, 8)? (5 points)

a
y = 2(x + 2)

b
y = 2(x − 2)

c
y = −2(x − 2)

d
y = −2(x + 2)

Answer 1

A) y=2(x+2)

Explanation:

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

m=(8-0)/(2-(-2))

m=8/(2+2)

m=8/4

m=2

y-y1=m(x-x1)

y-0=2(x-(-2))

y=2(x+2)

y=2x+4