Question

I need help with my math

Answer 1

The given function is:

$b(x)=-2x-4$

when x = -1;

$\begin{gathered} b(x)=-2(-1)-4 \\ b(x)=2-4 \\ b(x)=-2 \end{gathered}$

when x = 0;

$\begin{gathered} b(x)=-2(0)-4 \\ b(x)=0-4 \\ b(x)=-4 \end{gathered}$

when x = 4;

$\begin{gathered} b(x)=-2(4)-4 \\ b(x)=-8-4 \\ b(x)=-12 \end{gathered}$