M17 LE2 Sem1 1011 - MATHEMATICS 17 First Long Exam 1st Sem...

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MATHEMATICS 17 First Long Exam 1st Sem / AY 2010-2011 I. Write the letter/s that correspond/s to the correct answer/s. If the correct answer is not in the given choices, write D. 2 points each 1. Which of the following represents a function? (a) { (6 , 8) , (8 , 6) , (7 , 7) } (b) { ( x,y ) | x = y } (c) { ( x,y ) | x 2 + y 2 = 4 and x 0 } 2. Which of the following is true about the line 4 x + 6 y = 2? (a) It coincides with the line 2 x + 3 y = 2. (b) It is perpendicular to the line 3 x - 2 y = 1. (c) It will never intersect the line 2 x - 3 y = 2 . . 3. Suppose a and b are real numbers such that a > b . Which of the following is true? (a) | a | > | b | (b) a 2 > b 2 (c) | a + b | = | a | + | b | 4. Which of the following equations or inequality is paired to its correct solution set? (a) x + 2 = x - 1; φ (b) x - 1 x - 1 = 1; R (c) 2 x - 1 - x 2 < 0; R 5. Which of the following is true about the graph of function f ( x ) = x 2 - 1 | x | - 1 ? (a) It is symmetric with respect to the
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This note was uploaded on 08/05/2011 for the course MATH 17 taught by Professor Aaronjamesporlante during the Spring '11 term at University of the Philippines Diliman.

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M17 LE2 Sem1 1011 - MATHEMATICS 17 First Long Exam 1st Sem...

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