Question

Find the rate of change : (0,9) and (-3, -4

Answer 1

This is the same as finding the slope of the line through these two points. So we use the slope formula.

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


m = (-4-9)/(-3-0)


m = (-13)/(-3)


m = 13/3



So the slope of the line that passes through the two points is 13/3 which means that the rate of change is 13/3