Question

question given $f(x)=-2x - 5$, find $f(-1)$.

Explanation:

Step1: Substitute x = -1

Substitute $x=-1$ into $f(x)=-2x - 5$.
$f(-1)=-2\times(-1)-5$

Step2: Calculate the result

First, calculate $-2\times(-1)=2$. Then $f(-1)=2 - 5=-3$.

Answer:

$-3$