Precalc0101to0102-page21 - (Section 1.2: Graphs of...

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(Section 1.2: Graphs of Functions) 1.2.1 SECTION 1.2: GRAPHS OF FUNCTIONS LEARNING OBJECTIVES • Know how to graph a function. • Recognize when a curve or an equation describes y as a function of x , and apply the Vertical Line Test (VLT) for this purpose. • Recognize when an equation describes a function explicitly or implicitly. • Use a graph to estimate a function’s domain, range, and specific function values. • Find zeros of a function, and relate them to x -intercepts of its graph. • Use a graph to determine where a function is increasing, decreasing, or constant. PART A: DISCUSSION • In Chapter 0, we graphed lines and circles in the Cartesian plane. • If f is a function , then its graph in the usual Cartesian xy -plane is the graph of
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This document was uploaded on 12/29/2011.

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