Evaluation of Functions

Evaluate the function

 $f\left(x\right)=x^2\ +\ 4$  when x = 3.

Given the function below,  $f\left(-2\right)$ :

 $f\left(x\right)=x^2\ +\ 4$ 

Given the function below,  $f\left(\sqrt{5}\right)$ :

 $f\left(x\right)=x^2\ +\ 4$ 

 $f\left(x\right)\ =\ 3x^2\ +\ x\ -\ 5$  

Given the function above, evaluate  $f\left(-2\right)$  .

 $f\left(x\right)\ =\ 3x^2\ +\ x\ -\ 5$  

Given the function above, evaluate  $f\left(0\right)$  .

 $f\left(x\right)\ =\ 3x^2\ +\ x\ -\ 5$  

Given the function above, evaluate  $f\left(4\right)$  .

 $f\left(x\right)\ =\ 3x^2\ +\ x\ -\ 5$  

Given the function above, evaluate  $f\left(\frac{1}{2}\right)$  .

Given the piece-wise function, find the value of  $g\left(0.5\right)$ .

Given the piece-wise function, find the value of  $g\left(2\right)$ .

Given the piece-wise function, find the value of  $g\left(-4\right)$ .