Question

is this right?

Answer 1

The function below shows the number of car owners f(t), in thousands, in a city in different years t:

f(t) = 1.1t2 − 2.5t + 1.5

The average rate of change of f(t) from t = 3 to t = 5 is ______ thousand owners per year.

Numerical Answers Expected!

Answer for Blank 1: 6.3?

Answer 2

when t = 3, f(t) = 3.9
when t = 5, f(t) = 16.5
\(\dfrac{16.5-3.9}{5-3}=\dfrac{12.6}{2}=6.3\)

you are correct \(\ddot\smile\)

Answer 3

ok! yyay!

Answer 4

\(\ddot\smile\)