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Precalculus Practice Exam 2

# Precalculus Practice Exam 2 - Name Practice Exam 2 Math...

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Name:________________________ Practice Exam 2, Math 2312; Spring, 2008 1. (9 points) Match the formula and the graph: ____(a) ln x ____(b) log x ____(c) log 2x (i) (ii) (iii) 2. (9 points) The population (in thousands) of two cities are given by where t is the number of years since 1980. When does the population of P 1 equal that of P 2 ? 3. (8 points) Solve for x: log x + log(x – 3) = 1. 4. (9 points) The table below gives values for a function f. Fill in all the blanks for which you have sufficient information. If there is not enough information given, write UNDEF. x –2 –1 0 1 2 3 f(x) 5 –3 2 4 –1 2 f(– 0.5x) f(x – 1) 2f(x) t 2 t 1 ) 055 . 1 ( 49 P and ) 043 . 1 ( 52 P = =

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5. (9 points) Let p(x) = - |x+2|, q(x) = –|x| + 2, f(x) = |x| – 2, g(x) = - |x – 2|. Fill the blanks with the name of one of these functions. (a)__________ (b)___________ (c)___________ (d)__________ 6. (9 points) Fill in the blanks as indicated. Function
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Precalculus Practice Exam 2 - Name Practice Exam 2 Math...

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