MATH107Quiz5.pdf - MATH 107 QUIZ 5 October 2019 NAME...

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MATH 107 QUIZ 5 October 2019 Instructor: Dr. Fitzpatrick NAME: _______________________________ I have completed this assignment myself, working independently and not consulting anyone except the instructor. INSTRUCTIONS The quiz is worth 100 points, and there is an extra credit opportunity at the end. There are 10 problems. This quiz is open bookand open notes. This means that you may refer to your textbook, notes, and online classroom materials, but you must work independently and may not consult anyone(and confirm this with your submission). You may take as much time as you wish, provided you turn in your quiz no later than Monday, October 28. Show work/explanation where indicated. Answers without any work may earn little, if any, credit. You may type or write your work in your copy of the quiz, or if you prefer, create a document containing your work. Scanned work is acceptable also. In your document, be sure to include your name and the assertion of independence of work.General quiz tips and instructions for submitting work are posted in the Quizzes module. If you have any questions, please contact me by e-mail. 1. (4 pts) Which of these graphs represent a one-to-one function? Answer(s): ____________(no explanation required.)(There may be more than one graph that qualifies.) (A) (B) (C)
(D)2. (6 pts) Based on data about the growth of a variety of ornamental cherry trees, the following logarithmic model about these trees was determined: h(t) = 6.108 ln(t) + 6.099, where t= age of tree in years and h (t) = height of tree, in feet.(Note that "ln" refers to the natural log function) (explanation optional)Using the model, (a) At age 3 years, how tall is this type of ornamental cherry tree, to the nearest tenth of a foot? (b) At age 12 years, how tall is this type of ornamental cherry tree, to the nearest tenth of a foot?

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