138sp10exam1 - Math 13800 Exam 1 Spring 2010 Circle the...

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Math 13800 Exam 1 Spring 2010 1 Circle the letter of the correct answer for #1-3. (7 pts)1. Identify what changes should be made in the graph shown if it is to represent the following situation: Ashley delivers sandwiches for Jimmy John’s. She is paid $15 for a day’s work and $1 for every sandwich she delivers. . the line should be steeper . the line should be a series of dots instead of a smooth line . the line should begin at (0,0) . there is nothing incorrect about the graph . more than one thing is A B C D E incorrect about the graph (7 pts)2. If Wile E. Coyote travels n feet in 10 seconds, his speed is: 10 10 . 10 miles per hour . 10 feet per second . miles per hour . feet per second . None of the above n n A n B n C D E (7 pts)3. Calculate the given product. ( ) ( ) 2 1 4 3 2 1 x x × + + 2 2 2 2 2 2 4 3 3 1 4 3 3 8 2 3 3 1 1 3 3 8 1 3 3 . 4 . 4 . 4 . 4 . 4 A x x B x x C x x D x x E x x + + + + + + + + + + 5 10 Number of sandwiches 30 25 20 15 10 5 Dollars earned Earnings for one day
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