# hw7 - 7 Math 103 FS 2007 = ' . _ Homework #7 Name; blag...

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Unformatted text preview: 7 Math 103 FS 2007 = ' . _ Homework #7 Name; blag £145 - ' _ Section#: PID: 7. r r ' , . _ r - - Instructor: 7_ Read the introductory instructions. You must show all work to get credit. 1. (2 points) Find an equation for the inverses of gandh, Wherez‘ 7‘ We; 5/41"”:3Xﬁ3. _ 7 __ ‘ , 3 _ WM“ W e: if: _ 2. (2 points) The graph of f is giVen below! I I 3) Draw the graph of f‘l. y= f(x):7 (“2%) —-) (4,5) (4,6) "'Méa‘z‘} * - -’ w (—2») —> (5,13 b) Evaluate f '1 («-l). 39%:4 B Math 103 FS 2007 Homevvork #7 ) 3. (4 points) Given f (x _= —2x2 +122; 510. Draw the graph off and ‘ ﬁnd: I b) the domain of f (in interval notation) c.) the range of f _ ' (in interval notation) 4.(2 points) Teddy’s. Guitar Designs has determined-that when'x hundred guitars are built, the average cost per {guitar is given by 7 _ C(x) = 0.1x2 ~-— 0.9:; + 2.425 , where C(x) is in hundreds of dollars. III-IIIIIIWIIIIIIIIIIII ' III-IIIIII'IIIIII‘IIIII _-_--l-itl.-ll__-!-Il a) How many guitars should be built in order to minimize the average cost per guitar? ¢5o ‘I-.\ b) What is the minimum average cost per ' guitar? -b owe \$610 not? __ 2(M) I eerie/2e ...
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## This note was uploaded on 03/19/2008 for the course MATH 103 taught by Professor James during the Spring '06 term at Michigan State University.

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hw7 - 7 Math 103 FS 2007 = ' . _ Homework #7 Name; blag...

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