Your document contains a set of mathematical problems categorized into four sections:

1. Graphing Functions: You need to draw graphs, identify domain, and range for given functions.
2. Limits: Evaluate limits, including piecewise functions and rational functions.
3. Continuity: Determine whether functions are continuous or discontinuous at given points and classify discontinuities.
4. Finding Points of Continuity: Identify values of $x$ where given functions are continuous.

Would you like help solving specific problems, or would you like a step-by-step explanation of a particular section?

Here are five relevant questions that build on your document:

1. How do you find the domain and range of a function algebraically?
2. What are common strategies for graphing square root, absolute value, and piecewise functions?
3. How do you determine if a limit exists for a given function?
4. What are the different types of discontinuities in a function?
5. How do you redefine a function to make it continuous at a given point?

Tip: When evaluating limits, always check for indeterminate forms (like $\frac{0}{0}$) and use algebraic simplifications such as factoring or L'Hôpital's rule when necessary.