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Unformatted text preview: 4, 5 ( ) . This would have been the case even if that point alone had been deleted from the graph. If = 1 , we can choose = 2 . If = 0.5 , we can choose = 1 . (Figure 2.7.e) (Figure 2.7.f) More generally for this example, if is any positive real constant, we can choose = 2 . Why is that? Graphically, we can exploit the fact that the slope of the line y = 7 1 2 x is 1 2 . Remember: slope = rise run . Along the line, an xrun of 2 units corresponds to a ydrop of 1 unit. We will now demonstrate this rigorously....
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This note was uploaded on 12/29/2011 for the course MATH 150 taught by Professor Sturst during the Fall '10 term at SUNY Stony Brook.
 Fall '10
 sturst
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