Piecewise Day 1 Notes

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!