Q6. - Algebra 2

Question

Find each value

 

$6.$ $f\left(3\right)$ if $f\left(x\right)=7-x^2$

Step-by-Step Solution

Answer

The value of $f\left(3\right)$ is $-2$.

Step 1 – Putting value of x

We will put 3 in place of x to determine the value of the function.

Step 2 – Simplifying the given function

As, we have:

$f\left(x\right)=7-x^2$

We will put $x=3$:

$\begin{array}{l}f\left(3\right)=7-{\left(3\right)}^2\\ f\left(3\right)=7-9\\ f\left(3\right)=-2\end{array}$

Step 3 – Determining the final answer

$f\left(3\right)=-2$