Determine whether the given function is one-to-one. If so, find a formula for the inverse.f(x) = 
A. Not a one-to-one function
B. f-1(x) = x3 + 1
C. f-1(x) = 
D. f-1(x) = (x - 1)3
Answer: B
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The graph of an exponential function is given. Match the graph to one of the following functions.
A. f(x) = 5x + 1 B. f(x) = 5x - 1 C. f(x) = 5x D. f(x) = 5x + 1
Solve the problem.Some people must eat a low-sodium diet with no more than 2000 mg of sodium per day. By eating 1 cracker, 1 pretzel, and 1 cookie, a person would ingest 149 mg of sodium. If a person ate 8 pretzels and 8 cookies, he or she would ingest 936 mg of sodium. By eating 6 crackers and 7 pretzels, a person would take in 535 mg of sodium. Which of the following statements is true?
A. A cookie contains 71 mg of sodium. B. A pretzel contains 49 mg of sodium. C. A cracker contains more sodium than a cookie D. A cracker contains 30 mg of sodium.
Provide an appropriate response.The domain of a polynomial function is the set of all real numbers. What is the range of a polynomial function of odd degree? One of even degree?
What will be an ideal response?
Express in terms of sums and differences of logarithms.logb
A. 
logbx + 
- logby + 
logbz
B. 
logbx + 2 - 4logby - 10logbz
C. 
logbx ? 
- (logby ? 
logbz)
D. 
logbx + 
- logby - 
logbz