To get the average rate of change, we simply have to use this formula: ARC = (y2 -y1) / (x2 - x1)
For the first function: ARC = (64 - 0) / (4 - 0) = 16
For the second function, since it's a line, the ARC would just be equal to the slope m = ARC = (-1 - 0) / (0 - (-2)) = -0.5
For the third function: h(0) = 18 h(4) = 66 ARC = (66 - 18) / (4 - 0) = 12
Therefore, the order of the functions from lest to greatest according to the average rate of change on the interval from x= 0 to x = 4 is: g(x) h(x) f(x)
