Inverse Function Calculator
Function Type
Parameter a
Parameter b
✓Inverse Function
Original
f(x) = 2x + 3
Inverse f⁻¹(y)
f⁻¹(y) = (y − 3) / 2
The inverse function f⁻¹(x) undoes the effect of f(x). If f(a) = b, then f⁻¹(b) = a. Not every function has an inverse — it must be one-to-one (each output has exactly one input).
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