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
 FREE study tips and eBooks on various topics
Finding an Inverse Algebraically  Problem 4
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
We must treat inverses of odd powers differently than inverses of even powers because of differences in the plus/minus signs. Recall that an odd root of a negative value does exist! (Like, the cube root of negative 8 is negative 2). Here we look at taking the inverse of odd power functions by first switching x and y, then undoing any operations to isolate the power, then doing the opposite root, rationalizing the denominator, and simplifying. Don't forget that you can check your work using composition of functions!
Transcript Coming Soon!
Please enter your name.
Are you sure you want to delete this comment?
Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
Your tutorials are good and you have a personality as well. I hope you have more advanced college level stuff, because I like the way you teach.”
Thanks alot for such great lectures... I never found learning this easier ever before... keep up the great work.... :)”
You seem so kind, it's awesome. Easier to learn from people who seem to be rooting for ya!' thanks”
Concept (1)
Sample Problems (10)
Need help with a problem?
Watch expert teachers solve similar problems.

Finding an Inverse Algebraically
Problem 1 6,350 viewsFind f⁻¹(x) given
f(x) = (x − 2)³ 
Finding an Inverse Algebraically
Problem 2 4,916 viewsFind g⁻¹(x) given
g(x) = x² + 2 
Finding an Inverse Algebraically
Problem 3 882 views 
Finding an Inverse Algebraically
Problem 4 761 views 
Finding an Inverse Algebraically
Problem 5 717 views 
Finding an Inverse Algebraically
Problem 6 704 views 
Finding an Inverse Algebraically
Problem 7 667 views 
Finding an Inverse Algebraically
Problem 8 635 views 
Finding an Inverse Algebraically
Problem 9 841 views 
Finding an Inverse Algebraically
Problem 10 763 views
Comments (0)
Please Sign in or Sign up to add your comment.
·
Delete