Question

If F(x)= 4x-3, what is f(x)^-1?

Answer 1

\[F(x)=4x-3\]
Let's put \[x= f^{-1} (x)\]
\[F(f^{-1} (x))= 4 f^{-1} (x)-3\]
do you get this part?
@Saralynnjane

Answer 2

\[f^{-1} (x)= \text{inverse of function f(x)}\]

Answer 3

Kinda. I got confused bc of the negitive

Answer 4

you mean the - power of f(x)?

Answer 5

Yeah

Answer 6

it's just a representation of inverse of function f(x)

Answer 7

remember it's not equal to \({f(x)}^{-1}\)
\[f^{-1} (x)\ne \frac{1}{f(x)}\]

Answer 8

Then how do i get the answer from there?

Answer 9

ok, let's work on that

Answer 10

have you studied inverse functions before?

Answer 11

A long time ago yes

Answer 12

Ok, so inverse function, the name says it all it inverses
Suppose I have
\[y=x\]
I put x=1, we get y=1
Now if we were given y=1 and we had to find the value of x which will give y=1, can you tell that value of x?

Answer 13

Do you get my question?

Answer 14

Sorry my teacher saw me my phone