Inverse Function Calculator (Free, with Graph)
Use this free inverse function calculator to find the inverse of a linear or rational function f(x) = (ax + b)/(cx + d). It shows f⁻¹(x), the domain of each, and a graph of both reflected over the line y = x.
How to find an inverse
Write y = f(x), swap x and y, then solve for y. For f(x) = (ax + b)/(cx + d) the result is f⁻¹(x) = (−d·x + b)/(c·x − a). Set c = 0 and d = 1 for a simple linear function.
Original price was: $109.99.$54.99Current price is: $54.99.
How to use it
- Enter a, b, c, d.
- Press Find inverse.
More tools: free math calculators.
Frequently asked questions
What functions are supported?
Linear functions and rational (Möbius) functions of the form (ax + b)/(cx + d).
Original price was: $109.99.$54.99Current price is: $54.99.
When does an inverse not exist?
When ad − bc = 0 the function is constant or undefined and has no inverse.
Original price was: $109.99.$54.99Current price is: $54.99.
Why graph y = x?
A function and its inverse are mirror images across the line y = x.
Original price was: $27.99.$17.99Current price is: $17.99.
Related to This Article
More math articles
- 7th Grade SC Ready Math Worksheets: FREE & Printable
- What does SAT Stand for?
- The Ultimate PSAT Math Course (+FREE Worksheets & Tests)
- How To Calculate Outs In Poker
- How to Find Volume by Spinning: Disk Method
- How to Solve Inverse Trigonometric Functions?
- The Best Grade 7 Math Book for Wisconsin Students
- How to Understand Dot Product and Cross-Product
- A Comprehensive Collection of FREE SAT Math Practice Tests
- How to Solve Compound Interest Problems?
What people say about "Inverse Function Calculator (Free, with Graph) - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.