Question

For the graphed function f(x) = (4)x - 1 + 2, calculate the average rate of change from x = 2 to x = 4.

Answer 1

@johnweldon1993

Answer 2

@ganeshie8 ...

Answer 3

the asked question and the picture u attached are not matching

Answer 4

check once..

Answer 5

okay sorry, just click the picture then...

Answer 6

@ganeshie8

Answer 7

how?

Answer 8

average rate of change from x = 2 to x = 4 is \(\large \dfrac{f(4) - f(2)}{4-2}\)

Answer 9

first find f(4) and f(2)

Answer 10

\(\large f(x) = 4^{x-1}+2\)

Answer 11

plugin x = 4 for f(4)

Answer 12

okay

Answer 13

would 4 be the exponent?

Answer 14

\(\large f(4) = 4^{4-1}+2 = 4^3 + 2 = 64 + 2 = 66\)

Answer 15

similarly find f(2) and plug them in the average rate of change formula

Answer 16

okay, would i subtract the answers?

Answer 17

yes, and then divide by 4-2

Answer 18

\(\large f(2) = 4^{2-1}+2 = 4^2 + 2 = 4 + 2 = 6\)

Answer 19

30

Answer 20

right?

Answer 21

30 is right !

Answer 22

Thank you :) can you help me with another

Answer 23

@ganeshie8

Answer 24

sure, ask

Answer 25

\[\large \log_{2x-5} 25 = 2\]

\[\large \log_{2x-5} 5^2 = 2\]

\[\large 2\log_{2x-5} 5 = 2\]

\[\large \log_{2x-5} 5 = 1\]

Answer 26

change it to exponent form

Answer 27

\[\large 5 = (2x-5)^1\]

Answer 28

solve \(x\)

Answer 29

I got 5... is that right

Answer 30

5 is right !!

Answer 31

wow thanks! i have 2 more is that okay?

Answer 32

wat do u think the equation is

Answer 33

the first one?

Answer 34

right !

Answer 35

@ganeshie8

Answer 36

that's the right answer?!

Answer 37

i have one more!

Answer 38

@ganeshie8

Answer 39

i think it's the second one actually.

Answer 40

@ankit042 the most recent one!