Question

Use the function: f(x) = x3 + 2

Solving for the inverse will yield:


Select one:

Answer 1

Select one:


a. No solution as there is no answer

Answer 2

To find the inverse:

Replace f(x) with y
Switch x's and y's, so put x where y is and x where y is.
Solve for y
Replace y with f^-1(x)

Answer 3

And what would that give me

Answer 4

Do it...

Answer 5

I meant what will it look like after I do all that

Answer 6

@adjax can you help me please

Answer 7

I want you to take a look at this: http://mathinsight.org/inverse_function_examples

y

Answer 8

do I have to read the whole entire thing

Answer 9

Follow my steps

\[f(x)=x^3+2 \implies y = x^3+2\]

Answer 10

im following

Answer 11

\[x=y^3+2\]
switch x's and y's

now try the next step, which is solving for y.

Answer 12

how do I solve for y?

Answer 13

Get y on its own, some algebra, what would your first step be?

Answer 14

would I subtract 2 from both side

Answer 15

yes

Answer 16

\[y^3=x-2\]

Answer 17

Next step?

Answer 18

\[\frac{ x }{ 2 }=y ^{3}\]

Answer 19

is that what s supposed to look like

Answer 20

No you subtract from both sides, not divide :p

Answer 21

\[x=y3+2 \]
-2 -2

Answer 22

don't they both equal 0

Answer 23

On the right side it gets cancelled out.

Answer 24

This is odd, I've seen you ask much tougher problems involving higher algebra.