# How do you evaluate the function f(x)=x^2+2 at the given values of the variable f(9)?

##### 1 Answer
Nov 20, 2016

$f \left(9\right) = 83$

#### Explanation:

To evaluate f(9), substitute x = 9 into f(x)

$\Rightarrow f \left(\textcolor{red}{9}\right) = {\left(\textcolor{red}{9}\right)}^{2} + 2 = 81 + 2 = 83$