How to find the inverse of a rational function

[DeeDee1590]

too helpful!!

[pastephens19]

Sorry, I am not understanding your question. Can you write the complete equation?

[ManlyAsianDude]

What if there are 2 terms with the same y variable? (eg. y=(3x-4)^2; When you distribute there is a 9y^2 and a -12y. How do i get y to the power of 1?

[pastephens19]

@ManlyAsianDude

If you are asking how to solve y=(3y-4)^2, then try this:

Distribute: y = 9y^2 - 24y + 16

Get one side of the equation to zero: 0 = 9y^2 - 25y + 16

Then either factor or use quadratic formula to get y to the first power.

[ManlyAsianDude]

@pastephens19 The problem is that there is also an x variable. so what do i do with the x variable?

[jackielynnie]

thank you so much! you helped perfectly!

[csiebler]

Wow finally someone that makes it so simple!

[MyNameGreg]

oh my gosh thank you! I had forgotten to factor out a the y and i was freaking out. lol thank you

[oflynnp1]

@MyNameGreg Glad you found it helpful! :)

[VidCritics]

Merci