Determine whether the relation defines y as a function of x. Give the domain.y = 

A. Function; domain: (-?, ?)
B. Not a function; domain (-?, 11) ? (11, ?)
C. Not a function; domain: (-?, ?)
D. Function; domain (-?, -1) ? (-1, ?)


Answer: A

Mathematics

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A.
B.
C.
D.

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Solve the problem.The groundhog population of Punxsutawny, Pennsylvania is closely monitored each year. Two years ago the population decreased by 12%. Last year the number of groundhogs increased by 6%. This year the population also increased by 9%. What was the percentage increase/decrease of groundhogs over these three years? Round your answer to the nearest tenth of a percentage point.

A. 29.4% increase B. 1.7% increase C. 4.3% decrease D. 9.2% increase E. 24.8% decrease

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Graph the polar equation.r = 5 cos 5?

A.

B.

C.

D.

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