1. Section 3.4
Graphing Functions

2. Objective By following instructions students will be able to:
Graph functions on a coordinate plane.

3. Explain 1A
Graph each function.

4. Explain 1B
Graph each function.

5. Reflect #1
When graphing a function, does it matter if the function is written in function notation? Explain.
Your-Turn #1
Graph each function.
a) b)

6. Explain 2A
Use a graph to find the value of f(x) when x=-2.

7. Explain 2B
Use a graph to find the value of f(x) when x=-2.

8. Your-Turn #2
Use a graph to find the value of f(x) when x=3 for the function

9. Explain 3
The Mid-Atlantic Ridge separates the North and South American Plates from the Eurasian and African Plates.
The function y = 2.5x relates the number of centimeters y the Mid-Atlantic Ridge spreads after x years. Graph the
function and use the graph to estimate how many centimeters the Mid-Atlantic Ridge spreads in 4.5 years.

10. Revisit Objective
Did we…
Graph functions on a coordinate plane?

11. Homework
HW:
Page 119 #s 1-10, (omit 16), 23, LPT