Question

2 Months Money spent on iTunes Store (#)4144828817612Determine the two rates of change in this problem.Then explain the rate of changeA

Answer 1

The rate of change (ROC) is the speed at which a variable changes over a specific period of time.

First one

A = (4, 144)

B = (8, 288)

$\begin{gathered} m=\frac{288-144}{8-4} \\ m=\frac{144}{4} \\ m=36 \end{gathered}$

Second one

B = (8, 288)

C= (17, 612)

$\begin{gathered} m=\frac{612-288}{17-8} \\ m=\frac{324}{9} \\ m=36 \end{gathered}$

Both rate of changes are equal and the values is 36