1105_Proj2_F11

# 1105_Proj2_F11 - MAC1105 Project 2 Fall, 2011 Name: Period:...

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MAC1105 Project 2 Name: ___ Fall, 2011 Period: (circle yours) TH 11:00 TH 12:30 TH 2:00 Project 2 covers material associated with Test 2. It’s due at the start of class on Tuesday 10/25/11. Where applicable, show work to justify answers and earn partial credit. 1. The Department of Natural Resources (DNR) sometimes places restrictions on the size of buildings placed within 100 feet of shoreline. The DNR restriction for the area of this building is 120 square feet. Suppose we want to construct a shed with area 120 square feet, but its length must be 7 feet longer than its width. a) Let x = the width of the shed . Given that area of a rectangle is length times width, write an equation that gives area as a function of the width dimension x . y = __________________________ b) Find the length and width of if the shed is to have area 120 square feet. Answers: Length = ___________ feet and width = ____________ feet 2. For each quadratic function, find the discriminant and use it to predict the number of real or imaginary zeros for the function. Then find these zeros and simplify them completely. List the zeros as x -values. a)

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1105_Proj2_F11 - MAC1105 Project 2 Fall, 2011 Name: Period:...

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