Precalc0101to0102-page35 - (Section 1.2 Graphs of Functions...

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(Section 1.2: Graphs of Functions) 1.2.15 PART I: USING OTHER NOTATION WARNING 10 : Don’t get too attached to y , f , and x . Be flexible. Example 13 (Falling Coin) You drop a coin from the top of a building. • Let t be the time elapsed (in seconds) since you dropped the coin. • Let h be the height (in feet) of the coin. • Let s be a position function such that h = st () . We ignore what happens after the coin hits the ground. Instead of graphing y = fx , we graph h = . t , not x , is the independent variable . h , not y , is the dependent variable
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