|
Graphing
Absolute-Value Functions (page
2 of 2)
Here are some more examples, with just the T-charts
and graphs:
- Graph y
= | x | + 2
|
The T-chart:
|
|
|
|
...and the graph:
|
|
|
- Graph y
= –| x + 2 |
|
The T-chart:
|
|
|
|
...and the graph:
|
|
|
- Graph y
= –| x | + 2
Copyright
© Elizabeth Stapel 2006-2008 All Rights Reserved
|
The T-chart:
|
|
|
|
...and the graph:
|
|
|
- Graph y
= | x2 – 3x – 4 |
|
Without the absolute value, the quadratic
looks like this:
The absolute value will flip that negative
part (the part in the middle, below the x-axis)
up into the positive values (above the x-axis).
|
|
|
|
Here's the T-chart:
|
|
|
|
...and here's the graph:
|
|
|
With these graphs, when in doubt, plot more points!
<< Previous Top
| 1 | 2 | Return
to Index
|
Cite this article as:
|
Stapel, Elizabeth. "Graphing Absolute-Value
Functions." Purplemath. Available from
http://www.purplemath.com/modules/graphabs2.htm.
Accessed
|
|
|
|
