# How do you evaluate the function h(x)=3x-7 for #h(-2)?

May 14, 2018

See a solution process below:

#### Explanation:

For each occurrence of $\textcolor{red}{x}$ substitute $\textcolor{red}{- 2}$ and evaluate the right side of the function:

$h \left(\textcolor{red}{x}\right) = 3 \textcolor{red}{x} - 7$ becomes:

$h \left(\textcolor{red}{- 2}\right) = \left(3 \times \textcolor{red}{- 2}\right) - 7$

$h \left(\textcolor{red}{- 2}\right) = - 6 - 7$

$h \left(\textcolor{red}{- 2}\right) = - 13$