Question

3. What is an equation of the line in slope intercept form? (1 point)

A.y=2x-2
B.y=-2x-2
C.y=-2x+2
D.y=2x+2

Answer 1

C. y = 2x + 2

Explanation:

There are 2 points on the line (0,2) and (-3,-4)

from (-3,-4) to (0,2), rise over run is 6/3 so slope is 2

You can calculate it too

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

m = (-4 - 2)/(-3 - 0) = -6/-3 = 2

Using m = 2, x = 0, y = 2

y = mx + b

2 = 2(0) + b

b = 2

therefore

y = 2x + 2