answer : y = 4/5x - 22/5
y = mx + b
get m or slope (aka "rate" or "speed")
(fun fact : see how the graph is a straight line? a lot of calculus is trying to get the rate or speed or slope of a curved graph)
(-3,-6) (2,-2)
(y2 - y1)/(x2-x1)
-2 + 6/2 + 3
m = 4/5
(if you make the 2 points a triangle bottom is 5 and the right side is 4)
line formula
y - y1 = m (x - x1)
y + 6 = 4/5 ( x + 2 )
y = 4/5x + 8/5 - 6
y = 4/5x + 8/5 - 30/5
y = 4/5x - 22/5
side note : since the graph doesnt go thru (0,0) the graph is NOT PROPORTIONAL