This document discusses analyzing graphs of functions. It reviews the vertical line test and defines domain and range from a graph. It explains that the domain is the shadow a graph casts on the x-axis, while the range is the shadow on the y-axis. Zeros of a function are found by setting the function f(x) equal to zero and solving. A graph can be increasing, decreasing, or constant over different intervals based on whether its slope is positive, negative, or zero.

4. State the domain in interval notation

5. Now for the Range (shadow on the y-axis)

6. Find the domain and range:

7. Find the domain and range:

8. C. If you’re asked to “find the zeros of the function,” it just means replace “f(x)” with zero and solve. Like these:

11. State intervals where increasing, decreasing, or constant:

12. State intervals where increasing, decreasing, or constant:

13. State intervals where increasing, decreasing, or constant:

14. State intervals where increasing, decreasing, or constant: