Question

Rate of Change between August and October

Answer 1

Answer:

15 students per month

Step-by-step explanation:

The rate of change is calculated as

$\frac{f(b)-f(a)}{b-a}$

f(b) = 95 ← number of students in October

f(a) = 65 ← number of students in August

b - a = 2 ← difference in months

Thus

rate of change = $\frac{95-65}{2}$ = $\frac{30}{2}$ = 15

Answer 2

The rate of change is the ratio between the change in the y and x coordinates. The students ranged from 65 to 95 in two months, so the rate is

$\dfrac{95-65}{2}=\dfrac{30}{2}=15$