Question

Find each value if $f\left(x\right)=5x-9$

$f\left(-2\right)$

Short answer

The value of $f\left(-2\right)$ is $-19$.

Step-by-step solution

– Putting value of x

We will put $-2$ in place of xto determine the value of the function.

– Simplifying the given function

As, we have:

$f\left(x\right)=5x-9$

We will put $x=-2$:

$\begin{array}{l}f\left(-2\right)=5\left(-2\right)-9\\ f\left(-2\right)=-10-9\\ f\left(-2\right)=-19\end{array}$

– Determining the final answer 

$f\left(-2\right)=-19$