1. Warmup:
What do you know about writing absolute value functions as piecewise-defined functions?
• You go from one equation to the other where the graph reflects over the x-axis
• The domain for each section of the piecewise is determined by where the interior function changes sign
• When the function inside the absolute value produces negative answers, you write the ‘opposite equation’ in for that part of the domain of the piecewise function
• The reflection about the x-axis occurs graphically when the output values of the linear function within the absolute value is negative

2. Homework Check:
Parent Letter, p #1-20

3. Reflections of a Bike Lover
M3U1D4
Reflections of a Bike Lover
Objective:
Relate the domain of a function to its graph and, where applicable, to the quantitative
relationship it describes.
Question: What connections exist between the graph of an absolute value function and its
corresponding piecewise-defined function?

4. In small groups, answer page 17-18 #1-12.
You will have 30 minutes.
You will be asked to solve all 12 at the board.

5. Page 17
Read with Class

6. Discuss

7. Discuss

8. Discuss

9. Discuss

10. How do you graph an absolute value function?
How do you change it into a piecewise-defined function?
Discuss

11. Classwork:
p #1-12
Homework:
p. 20 S #4-7 all
p. 21 G #1-5 all