1.2 Notes
Domain:
Range:
Example 2: Find Domain and Range
Use the graph of g to find the domain and range of each function.
1)
2)
3)
A point where a graph intersects or meets the x- or y- axis is called an intercept. An x-intercept of graph
occurs where y=0. A y-intercept of a graph occurs where x=0. There graph of a function can have 0,1, or
more x-intercepts, but at most one y-intercept.
y-intercept:
Example 3: Finding y-intercepts
Use the graph of each function to approximate its y-intercept. Then find the y-intercept algebraically.
4)
5)
6)
Zeros:
Example 4: Find Zeros
Use the graph of each function to approximate its zero(s). Then find its zero(s) algebraically.
7)
8)
9)