Part 3
 Test 5
 Time: 1 hour


 Explain why the graph of a rational function cannot cross its
vertical asymptote.
 Where does the rational function
cross its horizontal asymptote?
 If
estimate the value
of the function when x=20,000,000,000,000,000 using oblique(slant)
asymptote. Will this estimate be more or less than the actual value
of the function at x=20,000,000,000,000,000? Why?
 Let .
 Find .
 State the range and domain of and g(x).
 Sketch both functions on the same coordinate axis.
 Answer the following:
 For which values of x is ?
 For which values of x is ?
 For which values of x is ?
 For which values of x is ?
 Find all the solutions of the system
 Using the method of substitution,
 By sketching the graphs of both equations.
 Suppose that $9500 is invested at 7.6% interest compounded monthly. How long will it take for the amount in the account to reach $20,000?
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Tue Jul 1 16:27:20 MDT 1997
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