Introduction to Topic 1.3: Finding Domain and Range of Graphs of Function Families

Functions can have several values for the domain and range; recall that each value of x is paired with exactly one value of the range.  As x changes, y does also, and it is important to be able to describe this set of values. We can do this using graphs of functions, which will provide us a picture of the sets for domain and range.

Essential Question: How do we describe the domain and range of a function using a graph?