Download Chapter 1

Notebooks
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These were the common issues:
No spiral or composition
No Name on Notebook
Start a NEW page each day
Label page with title and date
Minimum notes for each day:
– Concept
– At least ONE example
Graphing
Parent
Functions
Objectives
• I can graph these Parent Functions with critical
points
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Linear
Quadratic
Absolute Value
Square Root
• I can determine Domain and Range for these
Parent Functions
• I can determine x and y intercepts
Graph Intercepts
Intercepts are the points
where the graph crosses
the x & y axis
We write intercepts as
Ordered Pairs
(0,4) and (5,0)
Some graphs may only
have an x or y intercept
but not both
Other graphs may not
have any x or y intercept
Graphing Manually
• Make a Data Table of critical points
• Pick small numbers for “x”
X
y
0
Solve the equation for
1
"y" for each x-value
-1
2
-2
3
-3
Linear
• What are critical points
f ( x)  x
X
y
0
0
1
-1
1
1
2
2
-2
2
3
3
-3
3
Graph: f(x) = x
Linear
Quadratic
• What are critical points
f ( x)  x
X
y
0
0
1
1
-1
1
2
4
-2
4
3
9
9
-3
2
Graph: f(x) = x2
Quadratic
Absolute Value
• What are critical points
f ( x) | x |
X
y
0
0
1
1
-1
2
1
2
-2
2
3
3
-3
3
Graph: f(x) = |x|
Absolute
Value
Square Root
• What are critical points
f ( x)  x
X
y
0
0
1
1
4
2
9
3
16
4
This will not plot
on 10x10 grid
Graph: f(x) =
Square Root
x
Homework
• Finish Parent Function Logs