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Unformatted text preview: f may be expressed as b ax x f + = ) ( . a) 2 3 ) ( ! ! = x x f b) 2 ) ( 2 ! = x x f c) x x x f 3 2 4 3 8 ) ( + ! = d) 4 ) ( + = x x f 2. a) Find the slope, if it exists, of the line passing through the points (1,9) and (8,18) . b) If a linear function has the points (1,9) and (8,18) on its graph, what is the rate of change of the function? 3. Use the intercepts to graph the following equations. a) 2 4 y x ! = ! b) 3 9 x y + = 4. Suppose the monthly cost for the manufacture of tennis balls is x x C 21 . 1220 ) ( + = , where x is the number of tennis balls produced each month. a) What is the slope of the graph of the total cost function? b) What is the marginal cost (rate of change of the cost function) for the product? c) What is the cost of each additional ball that is produced in a month?...
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This note was uploaded on 10/18/2011 for the course MAC 1105 taught by Professor Russel during the Summer '07 term at Valencia.
 Summer '07
 RUSSEL
 Algebra

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