exam1Af10 - y x x

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NOTE: Be sure to bubble the answers to questions 1{14 on your scantron. Questions 1 - 9 are worth 5 points each. 1. If sec ± = ¡ 3 2 and … < ± < 3 2 , flnd sin 2 ± . a. ¡ 6 13 b. 4 p 5 9 c. ¡ 10 9 d. ¡ 2 p 5 9 e. 12 13 2. Solve the inequality: 1 x ¡ 1 2 x + 1 a. ( ¡1 ; ¡ 1) [ [3 ; 1 ) b. ( ¡ 1 ; 1) [ [2 ; 1 ) c. ( ¡ 1 ; 0) [ (1 ; 1 ) d. ( ¡1 ; ¡ 1) [ [0 ; 2] e. ( ¡1 ; ¡ 1) [ (1 ; 3] 3. Evaluate lim x ! a x ¡ a x a 2 ¡ 1 x if a > 0. a. 1 a 3 b. 2 a c. a 2 2 d. 1 2 a e. The limit does not exist. 4. An open rectangular box with a square base has a volume of 12 cubic feet. Express the surface area S of the box (in square feet) as a function of the length x (in feet) of a side of the base. a. S = x 2 + 48 x b. S = 12 x 2 c. S = x 2 + 12 x 2 d. S = 72 x 3 e. S = 4 x + 48 x x x y 2A
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5. Given the graph of f ( x ) = p x , which of the following will result in the graph of y = 3 ¡ 2 p x + 1? A. move the graph of f ( x ) right 1 unit, re±ect over the x -axis, compress horizontally by a factor of 2, and move up 3 units B. stretch the graph of f ( x ) vertically by a factor of 2, re±ect over the x -axis, move left 1 unit, and move up 3 units C. move the graph of f ( x ) left one unit, stretch vertically by a factor of 2, move up 3 units, and re±ect over the
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This note was uploaded on 01/31/2011 for the course MAC 2311 taught by Professor All during the Fall '08 term at University of Florida.

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exam1Af10 - y x x

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