1. Chapter 1: Lesson 1.5 Analyzing Graphs of Functions
Domain: All possible inputs (x) of a relation.
Range: All possible outputs (y) of a relation.
HW #9

2. Vertical Line Test
A relation is a function if no vertical line intersects the graph of the relation at more than 1 point.
See page 50

3. Finding the Zeros (or roots)
Zeros or roots are also called x-intercepts if they are real numbers. All x-intercepts are zeros…or roots, but not all zeros are x-intercepts.
The zeros of a relation are the x-values that make f (x) = 0.

4. Describing Function Behavior
See page 52
HW #33

5. Relative Minima and Relative Maxima
This is best handled visually on page 53

6. Average Rate of Change
For the interval of x = 1 to x = 5

7. Odd, Even, or Neither Even Functions:
Visually symmetric about the y-axis.
f(-x) = f(x)
(x, y) → (-x, y)
Odd Functions:
Symmetric with respect to the origin.
f(-x) = -f(x)
(x, y) → (-x, -y)
Graph and determine whether the function is odd, even, or neither,
Verify algebraically.
#78 f(x) = 5 – 3x