1. 4-2
Make a function table and a graph for the function y = –9x2. Is the function linear or nonlinear?
Step 1 Make a function table using the rule y = –9x2.
Lesson 4-2 Example 3

2. 4-2
Make a function table and a graph for the function y = –9x2. Is the function linear or nonlinear?
Step 2 Graph the ordered pairs.
Lesson 4-2 Example 3

3. 4-2
Make a function table and a graph for the function y = –9x2. Is the function linear or nonlinear?
Step 3 The rate of change is nonconstant.
Lesson 4-2 Example 3

4. 4-2
Make a function table and a graph for the function y = –9x2. Is the function linear or nonlinear?
Step 4 The function is nonlinear.
The graph should show a smooth curve.
Lesson 4-2 Example 3