Question

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

f(x) = 15(1.23)x

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

Round your answer to the nearest whole number.

Answer 1

@jigglypuff314

Answer 2

would it be ^x or just x?

Answer 3

its ^x

Answer 4

and i know that average rate is slope

Answer 5

so plug in 3 for x
then plug in 5 for x
and compare the two numbers

Answer 6

ok

Answer 7

I got 6 as my answer

Answer 8

hmmm? that's not quite what I got...
what numbers did you get after plugging in?

Answer 9

like i did the y2-y1/x2-x1 and i rounded getting 6 as my answer

Answer 10

not quite
I think it's supposed to be just plug in and then subract

Answer 11

okay, ill leave this question at the end :P

Answer 12

ill post another

Answer 13

I don't like leaving questions unfinished .-.
why not just try like I suggested?
15(1.23)^3 = ?
15(1.23)^5 = ?

Answer 14

okay let me try it again

Answer 15

first one would be 27.913005

Answer 16

and the second one would be 42.2295852645

Answer 17

yes :) then subtract those two numbers
and round

Answer 18

I subtracted it and got 14.3165802645 and round to 14

Answer 19

correct :) That's what I got ^_^

Answer 20

Oh! okay thanks! :), ill post another :P