Question

Help please!!! Medals will be given

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

f(t) = 0.25t2 - 0.5t + 3.5

The average rate of change of f(t) from t = 2 to t = 6 is ______ thousand per year.

Numerical Answers Expected!

Answer 1

19

Answer 2

ok thanks! how'd you get that?

Answer 3

did the work

Answer 4

\[\frac{f(6)-f(2)}{6-2}\] is what you have to compute

Answer 5

So is 19 right? @satellite73

Answer 6

should be

Answer 7

i doubt it

Answer 8

i get \[f(6) = 9.5\] and \[f(2) = 3.5\] and so
\[\frac{f(6)-f(2)}{6-2}=\frac{9.5-3.5}{4}=\frac{6}{4}=\frac{3}{2}=1.5\]

Answer 9

So what do you think the correct answer is?

Answer 10

no idea where the 19 came from
i think the correct answer is the one i just wrote

Answer 11

So it would be 1.5?

Answer 12

@satellite73