Math 107 Quiz 5
I have completed this assignment myself, working independently and not consulting anyone except the instructor.
The quiz is worth 100 points.
There are 10 problems, and one extra credit question.
This quiz is
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
Sunday, 3 May
Show work/explanation where indicated.
Answers without any work may earn little, if any, credit
type or write your work in your copy of the quiz, or if you prefer, create a document containing your work.
work is acceptable also.
In your document, be sure to include your name and the assertion of independence of
General quiz tips and instructions for submitting work are posted in the Quizzes module.
Read each question carefully
If you have any questions, please feel free to contact me.
1. (4 pts) Which of these graphs represent a one-to-one function?
Answer(s): A and C
No explanation required
There may be more than one graph that qualifies.
2. (6 pts) Based on data about the growth of a variety of ornamental Christmas trees, the following logarithmic model
about these trees was determined:
) = 5.925 ln(
) + 4.125;
= age of tree in years and
) = height of tree, in feet.
Note that "ln" refers to the natural log function.
Using the model,
At age 2 years, how tall is this type of ornamental Christmas tree, to the nearest tenth of a foot?
At age 12 years, how tall is this type of ornamental Christmas tree, to the nearest tenth of a foot?