Question

The function below shows the number of car owners f(t), in thousands, 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 owners per year.

Answer 1

first plug in t= 2 to the function and t= 6 in to the function.

Answer 2

Then using the average rate formula (f(6)-f(2))/(6-2), find the answer

Answer 3

or integrate the derivative between the limits 2 &6

Answer 4

this would be also an apt method for this.

Answer 5

f(6)=9.5 f(2)=4.4

Answer 6

@ribhu she probably did not know derivative and integration

Answer 7

ok i got 1.275

Answer 8

i know that she knows @ahamed.

Answer 9

so 1.2?

Answer 10

no wait

Answer 11

f(6)=9.5 f(2)=3.5

Answer 12

(9.5-3.5)/(6-2)=1.5

Answer 13

1.5 is the answer, baby