Answer:
y = (1/4)x-1
y=
x - 1
Explanation:
y=mx + b where m is the slope and b is the y intercept.
Just a quick look at the graph - - - the line is increasing, as x increases, y increases, so our slope should be positive.
We can see the y intercept is -1.
y=mx -1
m = slope = rise/run = (y2-y1)/(x2-x1)
Pick 2 points (any 2!) so we can find the slope.
(-4,-2) and (8,1)
slope = (-2-1)/(-4-8)
= -3/-12 = 1/4
y = (1/4)x-1