Precalculus Examples

If $f (x) = 4 x - 3$ ; what is $f {(x)}^{- 1}$ ?

Step 1

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$f \frac{1}{x}$

Step 2

Combine $f$ and $\frac{1}{x}$ .

$\frac{f}{x}$