##### Like what you saw?

##### Create FREE Account and:

- Watch all FREE content in 21 subjects(388 videos for 23 hours)
- FREE advice on how to get better grades at school from an expert
- Attend and watch FREE live webinar on useful topics

# Definition of Inverse - Problem 2

###### Carl Horowitz

###### Carl Horowitz

**University of Michigan**

Runs his own tutoring company

Carl taught upper-level math in several schools and currently runs his own tutoring company. He bets that no one can beat his love for intensive outdoor activities!

Inverse application: For this particular example behind me what I know is a function that f(x) is equal 2to the x and I’m trying to find the value of an inverse. 2 to the x may be a new function to you, that’s okay we’re going to talk about it later, but what you do need to know is that it is a one to one function so it does have an inverse so this application does hold true.

What we’re trying to find is f inverse of 8. In dealing with function notation what’s in the parenthesis is our x value. What this is actually telling us is we have a point 8, something on our inverse. What we’re trying to find is what this blank is. If we have the inverse for that point we can take, switch the x and ys in order to find the point on the normal function.

If we add the point 8, something on our inverse, we now know that we have the point something, 8 on our function. We want the value of 8 to come out here. So just thinking about 2 to what power is going to give us 8? We have trouble with that transition this is our y value, f(x) is the same as our y values so this is really turning it into 8 is equal to 2 to the x. Just think about what power of 2 will give us 8, hopefully you can remember your powers and this comes out to be 3. 2 to the third is equal to 8 so we know that we have the point 3,8 on our function which corresponds to the point 8,3 on our inverse. So we’re just going a little bit backwards, taking one point in our inverse switching it over to our function we can solve this out to get our answer.

Please enter your name.

Are you sure you want to delete this comment?

###### Carl Horowitz

B.S. in Mathematics University of Michigan

He knows how to make difficult math concepts easy for everyone to understand. He speaks at a steady pace and his step-by-step explanations are easy to follow.

i love you you are the best, ive spent 3 hours trying to understand probability and this is making sense now finally”

BRIGHTSTORM IS A REVOLUTION !!!”

because of you i ve got a 100/100 in my test thanks”

###### Get Peer Support on User Forum

Peer helping is a great way to learn. Join your peers to ask & answer questions and share ideas.

##### Concept (1)

##### Sample Problems (5)

Need help with a problem?

Watch expert teachers solve similar problems.

## Comments (0)

Please Sign in or Sign up to add your comment.

## ·

Delete