# Quiz9B - Name : Section : : MAC1140, Quiz 9 UFID Show all...

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Unformatted text preview: Name : Section : : MAC1140, Quiz 9 UFID Show all of your work to receive credit. Please use a pen with blue or black ink. When you are nished, FOLD your paper in half lengthwise and write your name on the back. 1. Let f (x) = (x + 2)3 - 1. (a) Find f -1 (x). (b) Verify your answer to part (a) by showing that (f f -1 )(x) = x. 2. Let f (x) = 3x2 - 6x + 2. (a) Find the vertex of the graph of f (x). Your answer should be an ordered pair. (Hint: You complete the square to nd this, but you don't have to) can (b) Find the y -intercept of f (x). (c) Does the graph have x-intercepts? If so, nd them. If not, nd the complex roots of f (x). ...
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## This note was uploaded on 06/07/2011 for the course MAC 1140 taught by Professor Williamson during the Fall '08 term at University of Florida.

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