Question

Find the rate of change​

Answer 1

Answer: 280 graduates per year

Step-by-step explanation:

the rate of change is the change in y (number of graduates) divided by the change in x (year).

So: $\frac{8.9-7.5}{2010-2005} = 0.28$ because this number is in thousands of graduates, multiply by 1000 to get 0.28*1000=280 graduates per year

Answer 2

Answer:

$\frac{1.4}{5}$

Step-by-step explanation:

We have the coordinates (2005, 7.5) and (2010, 8.9). To find the rate of change we must use the equation $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$ which is $\frac{8.9-7.5}{2010-2005}$. To simplify that further, we get $\frac{1.4}{5}$ therefore the rate of change is 1.4 over 5.