# Inverse Functions

Definition of Inverse Functions $$ \Large+ \leftarrow \text{ inverse operation } \rightarrow -$$ $$ \Large \times \leftarrow \text{ inverse operation } \rightarrow \div $$ $$ \Large x^2 \leftarrow \text{ inverse operation } \rightarrow \sqrt{x} $$ The function $y=4x-1$ can be undone by its inverse function $y=\dfrac{x+1}{4}$. We can consider of this act as two processes [...]