2007 paul dawkins 148

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Unformatted text preview: value inside the absolute value bars. © 2007 Paul Dawkins 145 http://tutorial.math.lamar.edu/terms.aspx College Algebra So, as suggested above both answers did in fact work and both are solutions to the equation. [Return to Problems] So, as we’ve seen in the previous set of examples we need to be a little careful if there are variables on both sides of the equal sign. If one side does not contain an absolute value then we need to look at the two potential answers and make sure that each is in fact a solution. © 2007 Paul Dawkins 146 http://tutorial.math.lamar.edu/terms.aspx College Algebra Absolute Value Inequalities In the previous section we solved equations that contained absolute values. In this section we want to look at inequalities that contain absolute values. We will need to examine two separate cases. Inequalities Involving < and £ As we did with equations let’s start off by looking at a fairly simple case. p £4 This says that no matter what p is it must have a distance of no more than 4 from the origin. This means that p must be somewhere in the range, -4 £ p £ 4 We could so a similar inequality with the &...
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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.

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