# test3 - COLLEGE OF ARTS AND SCIENCES Barry University...

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COLLEGE OF ARTS AND SCIENCES Barry University Department of Mathematics and Computer Science MAT-109 Test 3 March 24th, 2010 Answer the questions in the spaces provided on the question sheets. If you run out of space for an answer, use an extra sheet. There are 5 questions. Name and section: 1. (1 point) (pg 340, ex 39) For a polynomial whose real zeroes and degree are: Zeroes: -3, 0, 4, degree=3 2. (pg 340, ex 51) For f ( x ) = ( x - 5) 3 ( x + 4) 2 . Show ALL your work (a) (1 point) List each real zero and its corresponding multiplicity. (b) (1 point) Determine whether the graph crosses or touches the x -axis at each x - intercept. (c) (1 point) Dtermine the y -intercept. (d) (1 point) Determine the behavior at the end. (e) (1 point) Graph f ( x ) (f) (1 point) Using the above solve the following inequality: ( x - 5) 3 ( x + 4) 2 < 0 Show ALL your work, not just the answer 3. (pg 341, ex 63) Decide which of the polynomial functions in the list might have the graph below (more than one answer may be possible). Justify your reasoning for each of

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test3 - COLLEGE OF ARTS AND SCIENCES Barry University...

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