Inverse functions and logs -problems

Inverse functions and logs -problems - handa(nh5757 Inverse...

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handa (nh5757) – Inverse functions and logs – bormashenko – (54880) 1 This print-out should have 27 questions. Multiple-choice questions may continue on the next column or page – Fnd all choices before answering. 001 10.0 points ±ind the value of x when x = 4 3 p 2 log 2 2 P 9 p 3 log 3 4 P without using a calculator. 1. x = 1 2 2. x = 5 12 3. x = 5 12 4. x = 7 12 5. x = 1 2 002 10.0 points Use properties of logs to simplify the ex- pression log a 32 + 4 5 log a 10 4 5 log a 5 + log a 1 2 9 5 as much as possible. 1. log a 16 2. log a 2 6 3. log a 32 4. log a 64 5. 16 003 10.0 points Rewrite 3 4 = 81 in equivalent logarithmic form. 1. log 81 3 = 4 2. log 3 81 = 4 3. log 3 81 = 4 4. log 10 81 = 3 5. log 3 1 81 = 4 004 10.0 points ±ind the value of x when x = 7 log 2 p 1 4 P + 6 log 4 64 . 1. x = 4 2. x = 5 3. x = 6 4. x = 5 5. x = 4 6. x = 6 005 10.0 points If f is a one-to-one function such that f (8) = 2, what is the value of f 1 (2)? 1. f 1 (2) = 10 2. not enough information given 3. f 1 (2) = 8 4. f 1 (2) = 14 5. f 1 (2) = 6
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handa (nh5757) – Inverse functions and logs – bormashenko – (54880) 2 6. f 1 (2) = 13 006 10.0 points Find the inverse function, f 1 , of f ( x ) = 5 x 7 x 2 + 1 . 1. f 1 ( x ) = 25 + 7 x 2 x 2. f 1 ( x ) = x 25 + 7 x 2 3. f 1 ( x ) = x 25 7 x 2 4. f 1 ( x ) = 25 7 x 2 7 x 5. f 1 ( x ) = 7 25 x 2 6. f 1 ( x ) = 25 x 2 7 007 10.0 points Simplify the expression ln 8 e 4 as much as possible 1. ln 8 1
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Inverse functions and logs -problems - handa(nh5757 Inverse...

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