Question

For $f\left(x\right)=2x-3$find each value

$f(-2)$

Short answer

The value$f(-2)$ is –7.

Step-by-step solution

Step 1. From question.

The given expression is$f\left(x\right)=2x-3$

Step 2. To find.

Find the value of $f(-2)$if$f\left(x\right)=2x-3$

Step 3. Evaluation.

Putting $x=–2$if $f\left(x\right)=2x-3$, we get,

$\begin{array}{l}f\left(-2\right)=2\left(-2\right)-3\\ =-4-3\\ =-7\end{array}$

Hence, the value of $f(-2)$if $f\left(x\right)=2x-3$ is –7.