Inverse Function
Calculate Inverse Function instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Inverse Function
y
f: y=ax+b, a
b
x = (y-b)/a
3
More about: Inverse Function
What it calculates
The “Inverse Function” calculator computes x = (y-b)/a from 3 parameters: y, f: y=ax+b, a, b.
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters y = 7, f: y=ax+b, a = 2, b = 1 the result is 3.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.