Understanding the Limit of a Function

For the following limit, define $a, f (x),$ and $L .$

\lim_{x \to 2} (3 x + 5) = 11

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

For the following limit, define $a, f (x),$ and $L .$

\lim_{x \to 5} (2 x^{2} - 4) = 46

How did it go?