What are the conditions on m and b such that the linear function y = mx+ b is its own inverse? Avoid guessing and checking. Prove this using algebraic technique only.
Added by Anthony M.
Step 1
For a function \( f(x) = y \), the inverse function \( f^{-1}(y) = x \) should satisfy \( f(f^{-1}(y)) = y \) and \( f^{-1}(f(x)) = x \). Show more…
Show all steps
Close
Your feedback will help us improve your experience
Ryan Yaiser and 97 other Algebra educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Prove that the inverse of the linear-fractional function $y=\frac{a x+b}{c x+d}(a d-b c \neq 0)$ is also a linear-fractional function. Under what conditions does this function coincides with it's inverse?
DISCUSS: Determining When a Linear Function Has an Inverse For the linear function $f(x)=m x+b$ to be one-to-one, what must be true about its slope? If it is one- to-one, find its inverse. Is the inverse linear? If so, what is its slope?
Functions
One-to-One Functions and Their Inverses
Recommended Textbooks
Elementary and Intermediate Algebra
Algebra and Trigonometry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD