Let $f(x)=\frac{1}{x}.$ Calculate $\frac{f(x)-f(4)}{x-4}$ and $\frac{f(4+h)-f(4)}{h}$

$($Express numbers in exact form. Use symbolic notation and fractions where needed.$)$

$\frac{f(x)-}{x-1}$

$\frac{f(4+h)-f(4)}{h}=$

Take the appropriate limit to find $f^{\text{'}}(4).$

$($Give an exact answer. Use symbolic notation and fractions where needed.$)$

$f^{\text{'}}(4)=$

$$Let $f(x)=\frac{1}{x}.$ Calculate $\frac{f(x)-f(4)}{x-4}$ and $\frac{f(4+h)-f(4)}{h}$

$($Express numbers in exact form. Use symbolic notation and fractions where needed.$)$

$\frac{f(x)-}{x-1}$

$\frac{f(4+h)-f(4)}{h}=$

Take the appropriate limit to find $f^{\text{'}}(4).$

$($Give an exact answer. Use symbolic notation and fractions where needed.$)$

$f^{\text{'}}(4)=$

$$