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CalcNotes0101-page15

CalcNotes0101-page15 - (Chapter 1 Review 1.15 PART G THE...

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(Chapter 1: Review) 1.15 PART G: THE VERTICAL LINE TEST (VLT) An equation in x and y describes y as a function of x , and we can then say y = fx () ± Its graph passes the VLT in the standard xy -plane, meaning that there is no vertical line that intersects the graph more than once (i.e., there is no input x that yields more than one output y ). Example The graph of x 2 + y 2 = 9 is a circle of radius 3 centered at the origin. It fails
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