153E3-F2011 - MA 153 Exam 3A 1. Given the graph of the...

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MA 153 Exam 3A Fall 2011 1 1. Given the graph of the function find the interval where is increasing.               . 5,5 . 2,2 . , 2 0,2 . ,2 . , 2 A B C D E      2. Which of the following is the graph of (±) ² ± ³ ´ 4± ? ? ? ? ? ? 2 2 1 1 1 1 1
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MA 153 Exam 3A Fall 2011 2 3. Suppose y is directly proportional to the product of x and the square of w and inversely proportional to the sum of r and s . If 2, 3, 1, and 5 x w r s , then 15 y . Find the value of the constant of proportionality, k . . 5 18 5 3 1 2 None of the above Ak Bk Ck Dk E 4. Solve the following system of equations for x . y x 2 4 x 7 2 x y   1 . There are two solutions. One is between -3 and -1. . There are two solutions. One is between -1 and 1. . There are two solutions. One is between 1 and 3. . There are no soluti A B C D ons. . None of the above. E 5. Find (±²³)´ when ²µ) ¶ 2µ · ¸ 5µ ¹ 1 and ±²µ) ¶ 3µ ¹ 2 .
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153E3-F2011 - MA 153 Exam 3A 1. Given the graph of the...

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