Precalculus I--Part 3--Test 1

Precalculus Practice Exam

Part 3 Test 1 Time: 1 hour

Let .
- Sketch the graph of identifying any intercepts and asymptotes.
- Give the domain and range of .
Solve for x algebraically:
Compress the expression

into one simplified logarithm. Also, give the domain of the original expression.
The radioactive element carbon-14 has a half-life of about 5,750 years. The percentage of carbon-14 present in the remains of animal bones can be used to determine age. How old is an animal bone that has lost 40% of its carbon-14?
Solve the system algebraically:

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Tue Jun 17 21:31:48 MDT 1997