Use the vertical line test to determine whether the graph represents a function.
A. function
B. not a function
Answer: B
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Use identities to find the exact value of the expression.cos 20° sec 20°
A. 20 B. 1 C. -1 D. 0
Let N denote the number of raccoons present in a certain area at time t.
?
A: From 1990 to 2000 favorable conditions allow the population to increase at a constant rate of 53 animals per year. What can be said about 
during this time period?
?
B: From 2000 to 2005 drought caused the food supply to diminish, and the population size decreased. What can be said about during this time period?
?
C: From 2005 on the racoon population remained stable. It neither increased nor decreased. What can be said about during this time period?
What will be an ideal response?
Let p represent a true statement, while q and r represent false statements. Find the truth value of the compound statement.~[~p ? (~q ? p)]
A. True B. False
Determine whether the given lines are parallel, perpendicular, or neither.y = x + 6y = -x
A. Parallel B. Perpendicular C. Neither