Use the vertical line test to determine if the graph is a graph of a function.
A. Yes
B. No
Answer: A
Mathematics
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 8 B. -0.2 C. 0.1 D. 0.2
Mathematics
Find the local extrema of the function, if they exist.f(x) = 
A. Local minimum at (0, -2) B. No local extrema exist C. Local maximum at (0, -2) D. Local maximum at (0, 2)
Mathematics
Solve the problem.The average daily temperature T of a city in the United States is approximated by T = 55 - 23 cos 
(t -30)where t is in days, 1 ? t ? 365, and t = 1 corresponds to January 1. Find the period of T.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Evaluate the factorial expression.
A. 720 B. 121 C. 1 D. 120
Mathematics