Limits of Algebraic Functions

If f(x) is a polynomial function, what is the  $\lim_{x\rightarrow a}f\left(x\right)\ ?$   

Which of the following limit rules is TRUE ?

Based on the table, what is the limit of the function as x approaches to 2?

What is the  $\lim_{x\rightarrow2}f\left(x\right)$ ?

Based on the graph, evaluate f(-1) .

 $What\ is\ the\ \lim_{x\rightarrow2}f\left(x\right)$  

What is the $\lim_{x\rightarrow2^+}f\left(x\right)$  ?

What is the  $\lim_{x\rightarrow2^-}f\left(x\right)?$  

Evaluate $\lim_{x\rightarrow2}\ \sqrt{x^2\ +6x\ +\ 9}$  .

What is the  $\lim_{x\rightarrow2}\frac{x^2\ -6x\ +8}{2x\ -\ 4}$  ?