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# hw1 - padilla(tp5647 Homework01 Fouli(58320 This print-out...

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padilla (tp5647) – Homework01 – Fouli – (58320) 1 This print-out should have 21 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Rationalize the numerator of x + 3 x 2 x . 1. x x + 3 + x 2 2. 5 x ( x + 3 + x 2) 3. 5 x ( x + 3 x 2) 4. 1 x ( x + 3 + x 2) 5. 5 x x + 3 x 2 002 10.0 points Which, if any, of the following statements are true when a, b are real numbers? A. For all positive a and b . a b a + b = a + b . B. For all positive a and b , a + b = a + b . C. For all a and b , radicalBig ( a + b ) 2 = a + b . 1. A only 2. A and C only 3. B and C only 4. all of them 5. A and B only 6. C only 7. B only 8. none of them 003 10.0 points Find the domain of the function f ( x ) = x + 3 x 5 . 1. domain = { x : x ≤ − 3 , x negationslash = 5 } 2. domain = { x : x 3 } 3. domain = { x : x ≥ − 3 , x negationslash = 5 } 4. domain = { x : x > 3 , x negationslash = 5 } 5. domain = { x : x < 3 , x negationslash = 5 } 6. domain = { x : x 3 } 004 10.0 points Simplify the expression f ( x ) = 3 + 12 x 3 2 16 parenleftBig x x 2 9 parenrightBig as much as possible. 1. f ( x ) = x 3 x + 9 2. f ( x ) = 3 2 parenleftBig x 3 x 9 parenrightBig 3. f ( x ) = 3 2 parenleftBig x + 3 2 x 9 parenrightBig 4. f ( x ) = 3 2 parenleftBig x + 3 x 9 parenrightBig 5. f ( x ) = x 3 2 x + 9

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padilla (tp5647) – Homework01 – Fouli – (58320) 2 6. f ( x ) = x + 3 x + 9 005 10.0 points Find the x -intercept of the straight line passing through P = (5 , 3) and parallel to y + 3 x = 4 .
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hw1 - padilla(tp5647 Homework01 Fouli(58320 This print-out...

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