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Unformatted text preview: function composition.
Inverse Functions – We will define and find inverse functions in this section.
. © 2007 Paul Dawkins 152 http://tutorial.math.lamar.edu/terms.aspx College Algebra Graphing
In this section we need to review some of the basic ideas in graphing. It is assumed that you’ve
seen some graphing to this point and so we arent going to go into great depth here. We will only
be reviewing some of the basic ideas.
We will start off with the Rectangular or Cartesian coordinate system. This is just the standard
axis system that we use when sketching our graphs. Here is the Cartesian coordinate system with
a few points plotted. The horizontal and vertical axes, typically called the xaxis and the yaxis respectively, divide the
coordinate system up into quadrants as shown above. In each quadrant we have the following
signs for x and y.
Quadrant I
Quadrant II
Quadrant III
Quadrant IV x > 0 , or x positive
x < 0 , or x negative
x < 0 , or x negative
x > 0 , or x positive y > 0 , or y positive
y > 0 , or y positive
y < 0 , or y negative
y < 0 , or y negative Each point in the coordinate system is defined by an order...
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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
 MrVinh

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