The document discusses evaluating and graphing piecewise functions. It provides examples of evaluating piecewise functions for given values of x. It also gives examples of writing the domain, range, and graph of piecewise functions along with evaluating them. It assigns homework for students to create a shared document titled with their name and "Pre-Calc Journal" where they explain how to graph a piecewise function as if teaching someone who has never done it before. They are to go through each step in detail.

2. What do we need to do to get better?

3. Piecewise Functions
Mrs. Ramsey

4. EvaluatingEvaluating
Evaluate theEvaluate the
piecewise for thepiecewise for the
following:following:
X= 2X= 2
X= 4X= 4
X= -2X= -2



−>+−
−≤+
=
2,52
2,3
)(
xx
xx
xf

5. EvaluatingEvaluating
Evaluate theEvaluate the
piecewise for thepiecewise for the
following:following:
X = 1X = 1
X = 4X = 4
X = -3X = -3
X = 0X = 0
X = 7X = 7







>+
−
≤<−+
−≤−
=
1,
3
5
3
2
13,23
3,
)(
xx
xx
xx
xf

6. Graph, state domain and range, evaluate.



−>+−
−≤+
=
2,52
2,3
)(
xx
xx
xf

7. Graph, state domain and range, evaluate.





≥+−
<−
=
4,11
4
3
4,42
)(
xx
xx
xf

8. Graph, state domain and range, evaluate.







>+
−
≤<−+
−≤
=
1,
3
5
3
2
13,23
3,
)(
2
xx
xx
xx
xf

9. Graph, state domain and range, evaluate.






>−
≤<−−−
−≤+
=
2,92
22,12
2,5
)( 2
xx
xx
xx
xf

10. Graph, state domain and range, evaluate.







≥
<≤−
−<≤−
−<−
=
5,4
51,3
14,1
4,3
)(
x
x
x
x
xf

11. Homework – worksheet 
Open Google Drive – create a word
document
Title it “Your Name – Pre-Calc Journal”
Share it with me and make sure I can edit:
jonna_ramsey@iss.k12.nc.us
Entry 1 – 9/18/14
“How to graph a piecewise function”
Type instructions as if you are explaining
this topic to someone who has never done
it before. Go through each step in detail!