Question

Please help i dont understand how to do this

For f(x) = 0.01(2)x, find the average rate of change from x = 3 to x = 8.
0.08
0.496
2.48
5

Answer 1

whar u think it is

Answer 2

i dont know

Answer 3

find the value of f(x) when x = 3 and then when x = 8
these are labelled f(3) and f(8)
can you do that?

Answer 4

so its f3=0.01(2)3?

Answer 5

yes

Answer 6

though write it f(3)

Answer 7

and i multiply it all together? i dont remember how to do this

Answer 8

hold on I think the function is (2)^x

Answer 9

it is my bad

Answer 10

so f(3) = 0.01 * 2^3

Answer 11

yes sorry

Answer 12

that = 0.01 * 2 * 2 * 2

Answer 13

the exponent 3 means * 2 3 times

Answer 14

.08?

Answer 15

0.08

Answer 16

right
now do the same with x = 8

Answer 17

use ur calulator for this one

Answer 18

f(8)=0.01(2) ^8

Answer 19

thats right

Answer 20

256?

Answer 21

no
2^8 = 256
now multiply by 0.01

Answer 22

thats what i meants

Answer 23

??

Answer 24

2.56

Answer 25

256 8 0.01 = 2.56

Answer 26

ok
now
average rate of change = change in value of f(x) / change in value of x

= (2.56 - 0.08) / (8 - 3)

Answer 27

2.48/5 0.496

Answer 28

right

Answer 29

okay thanks

Answer 30

yw

Answer 31

plz press best respose if you are happy with the help

Answer 32

sorry i got the question right thanks

Answer 33

yw