Quiz2

NAME:
SECTION #:
MATH 142, Spring 2015
Seat #:
February 3, 2015
QUIZ 2 (TAKE HOME QUIZ)
GOOD LUCK
• Show all your work and indicate your final answer clearly. You will be graded not merely
on the final answer, but also on the work leading up to it.
1. A computer purchased in 2015 for $2,500 depreciates linearly over 10 years. If the salvage value
of the computer is $250, what will it be worth in 2020? What is the rate of depreciation?
2. A manufacturer of phones has a monthly fixed cost of $15,000 and a production cost of $200
for each phone manufactured. The units sell at $650 each. What are the cost function, revenue
function, and profit function?
NAME:
SECTION #:
MATH 142, Spring 2015
3. Solve for x:
25x 4x−1 = 83
4. Find the domain:
5. Evaluate log3 (10)
√
3
x+9
log2 (5x + 2)
Seat #:
February 3, 2015