Use the vertical line test to determine if the graph is a graph of a function.
A. Yes
B. No
Answer: B
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The graph of a one-to-one function f is given. Sketch the graph of the inverse function f-1, on the same set of axes. Use a dashed line for the inverse.
A. 
B. 
C. 
D. 
Express as a difference of logarithms.log8 
A. log4 13 - log4 11 B. log8 13 ÷ log8 11 C. log8 11 - log8 13 D. log8 13 - log8 11
Solve the problem.Anne and Nancy use a metal alloy that is 19.2% copper to make jewelry. How many ounces of a 15% alloy must be mixed with a 24% alloy to form 150 ounces of the desired alloy?
A. 80 ounces B. 70 ounces C. 75 ounces D. 82 ounces
Solve the problem.At a pencil factory, the average worker produces 72 pencils per day, with a standard deviation of 8 pencils per day. If one worker produces 63 pencils, what is the z-score for his number of pencils produced?
A. -1.125 B. 0.764 C. -0.889 D. -0.764