Math1313-PF-S10-filled - Print Test Page 1 of 20 PRINTABLE...

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PRINTABLE VERSION Practice Final (18267) Question 1 The slope of a line containing ( -7 , -10 ) and ( 6 , 4 ) is a) -14/13b) -14c) 14/13d) 13/14e) f) None of the above.
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Question 2 Give the equation of the line that passes through the points ( 3 , -2 ) and ( -2 , 2 ).
Question 3 Suppose you buy a piece of office equipment for $16,000. After 2 years you sell it for a scrap value nmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkj4/26/2010Page 1 of 20Print Test
of $1,000. The equipment is depreciated linearly over 2 years. The linear equation that expresses the value V of the piece of equipment is terms of t (time in years) is a) b) c) d) e) f) None of the above.Question 4 A manufacturer has a monthly fixed cost of $70,000 and a production cost of $21 for each unit produced. The product sells for $34 per unit. Find the break-even revenue. (Answers below are in dollars.)
Question 5 A company has fixed monthly costs of $110,000 and production costs on its product of $25 per unit. 4/26/2010nmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjPage 2 of 20Print Test
The company sells its product for $65 per unit. The cost function, revenue function and profit function for this situation are a) b) c) d) e) f) None of the above.Question 6 A manufacturer has a monthly fixed cost of $60,000.00 and a production cost of $12 for each unit produced. The product sells for $19 per unit. If the manufacturer produces and sells 13,000 units one month, then his profit is
Question 7 Which of the following matrices are in row-reduced form? (Note: The dotted vertical line in each matrix should be a single vertical line.)I.nmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjnmlkjPage 3 of 20Print Test4/26/2010
II.III.a) I and II onlyb) None of themc) II and III onlyd) I and III onlye) All of themf) None of the above.
Question 8 Given that the augmented matrix in row-reduced form below is equivalent to the augmented matrix of a system of linear equations. Determine whether the system has a solution and find the solution(s) to the system, if they exist. (Note: The dotted vertical line in the matrix above should be a single vertical line.)
= 0
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