Inverse Function

Calculate Inverse Function instantly with the exact formula and a worked example.

Inverse Function

y
f: y=ax+b, a
b
x = (y-b)/a
3
Calculate Inverse Function instantly with the exact formula and a worked example.

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

  1. Enter y, f: y=ax+b, a and b — each field above is adjustable with a slider.
  2. x = (y-b)/a is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Inverse Function calculated?
The Inverse Function calculator computes x = (y-b)/a from y, f: y=ax+b, a, b. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Inverse Function calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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