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Unformatted text preview: alue of x in the range x ³ 0 . This means that our graph will only exist in this
range as well.
To get the graph we’ll just plug in some values of x and then plot the points.
3 The graph is then, Absolute Value
We’ve dealt with this function several times already. It’s now time to graph it. First, let’s remind
ourselves of the definition of the absolute value function. if x ³ 0
f ( x) = í
î- x if x < 0
This is a piecewise function and we’ve seen how to graph these already. All that we need to do is
get some points in both ranges and plot them.
Here are some function evaluations.
Here is the graph of this function. © 2007 Paul Dawkins 225 http://tutorial.math.lamar.edu/terms.aspx College Algebra So, this is a “V” shaped graph.
We’re not actually going to look at a general cubic polynomial here. We’ll do some of those in
the next chapter. Here we are only going to look at f ( x ) = x3 . There really isn’t much t...
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This note was uploaded on 06/06/2012 for the course ICT 4 taught by Professor Mrvinh during the Spring '12 term at Hanoi University of Technology.
- Spring '12