## Intermediate Algebra (12th Edition)

$f(-4)=-1$
$\bf{\text{Solution Outline:}}$ Substitute the given value of $x$ in the given function, $f(x)=2x+7.$ $\bf{\text{Solution Details:}}$ Substituting $x=-4 ,$ in the given function, then \begin{array}{l}\require{cancel} f(-4)=2(-4)+7 \\\\ f(-4)=-8+7 \\\\ f(-4)=-1 .\end{array}