Question

The function below shows the number of students of a school who enrolled for salsa classes. Let f(x) represent the total number of students who enrolled for the classes after x years:

f(x) = 10(1.18)x

The average rate of change in the number of students who enrolled for salsa classes from the second to the fifth year is ________students per year.

Round your answer to the nearest whole number.

Numerical Answers Expected!

Answer for Blank 1:

Answer 1

@Michele_Laino

Answer 2

@SolomonZelman ,@Nnesha

Answer 3

I want to make sure I have it right. I got 2.99 for my final answer but I rounded up and got 3. Is that correct?

Answer 4

In the second year, no of students who enrolled class is

f(2) = 10 * 1.18^2 = 13.924 ~ 14 (students)

Similarly, in fifth year,

f(5) = 10 * 1.18^5 = 22.87 ~ 23 (students)

The average rate of change from 2nd to 5th year is

f(5)−f(2)5−2=3


Average rate of change is 3 students per year

Answer 5

you are correct

Answer 6

Thank you so much. I just wanted to make sure and you made it very clear. Thank you.