Given F(x) shown below, complete the equation for the inverse of F(x). If necessary, use the slash mark (/) for the division symbol.
F(x)=5x+4
f^-1(y)=_______

Question

Given F(x) shown below, complete the equation for the inverse of F(x). If necessary, use the slash mark (/) for the division symbol.
F(x)=5x+4
f^-1(y)=_______

hero · Answer

Are you sure that's what the question is?

anonymous · Answer

would you -4 to both sides and get y/1?

hero · Answer

It should be asking what's $F^{-1}(x)$

anonymous · Answer

and yes im sure thats what the question says

anonymous · Answer

yes you are correct hero

hero · Answer

I know I am

hero · Answer

To get the inverse, let y = $F(x)$

hero · Answer

y = 5x + 4

hero · Answer

Then swap x and y:

x = 5y + 4

hero · Answer

Then isolate y

hero · Answer

x - 4 = 5y

$$\frac{x - 4}{5} = y$$
Then replace y with $F^{-1}(x)$

hero · Answer

$$\frac{x - 4}{5} = F^{-1}(x)$$

I know that for you the steps might be confusing, but they are always the same.

anonymous · Answer

damn im confused

hero · Answer

There's nothing confusing about it.

hero · Answer

Where are you confused?

anonymous · Answer

on the work do i continue to find the answe r

anonymous · Answer

hero still theer

hero · Answer

Yes, I'm here. I showed you all the steps.