Quiz2__Key_Spring2008_123

Quiz2__Key_Spring2008_123 - 2. (8 points) Given the graph...

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MA 123 Quiz#2 Arazyan, Spring 2008 Student Name ___________Key_________ Discussion Section #___ BU ID#_______________ Show all your work for full credit. 1. (12 points) Solve the following equation for x . 1 3 2 )) 1 ( log (log 2 log 2 2 2 - + + = x x x Solution: 1 0 1 2 1 3 1 3 )) 1 ( ( 2 log ) 1 3 ( 2 2 2 2 log 2 )) 1 ( (log 2 2 = = + - - = + - = + - = + x x x x x x x x x x x x Notice that 1 = x is in the domain of both log functions.
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Unformatted text preview: 2. (8 points) Given the graph of ) ( x f .-2-1 1 Find ) ( lim 2 x f x-- = 2.5 ) ( lim 2 x f x +- = 4 ) ( lim 2 x f x- = does not exist ) 2 (-f = 4 ) ( lim 1 x f x- = 1.5 ) ( lim 1 x f x + = 1.5 ) ( lim 1 x f x = 1.5 ) 1 ( f = 3 1 4...
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