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Unformatted text preview: MAC1140, Precalculus Algebra, Summer B 2007 Review Problems for Exam 3 1. Describe each graph! (If it’s a circle, find center and radius!) a) 2 x 2 + 2 y 2 + 20 x + 8 y + 56 = 0 b) 4 x 2 + 4 y 2 4 x + 12 y + 10 = 0 c) x 2 + y 2 4 y + 5 = 0 2. Find the slopeintercept form of the equation of a line that a) has slope 1 and yintercept 3 b) goes through the points ( 2 , 1) and (1 , 0) c) is parallel to the line 5 x + y +1 = 0 and goes through the point (1 , 1) d) is perpendicular to the line 5 x + y + 1 = 0 and goes through the point (1 , 1) 3. Find all k such that the line through the points (1 ,k ) and (3 ,k 2 ) is perpendicular to the line 6 y + 2 x + 5 = 0. 4. A company has a fixed cost of $400 and additional costs of $3 for each unit of a product it produces. The revenue from selling one unit of the product is $8. a) Find an equation that relates the profit P with the number x of units produced....
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This note was uploaded on 06/09/2011 for the course MAC 1140 taught by Professor Williamson during the Summer '08 term at University of Florida.
 Summer '08
 WILLIAMSON
 Calculus, Algebra, Slope

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