Write the statement as a power function equation. Use k as the constant of variation.The cost c of a turkey varies directly as its weight w.
A. c = 
B. c = 
C. c = kw2
D. c = kw
Answer: D
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Solve the problem.Suppose that the data set {x1,x2, x3, ...,xN} has average A and standard deviation s. If A' and s' are the average and standard deviation of the data set 
respectively, then
A. A' = A + c and s' = s. B. A' = A and s' = s. C. A' = A + c and s' = s + c. D. A' = A and s' = s + c. E. none of these
Solve the problem.Suppose that a radio signal transmission pattern can be modeled by 
for 
where the units are in miles. Describe the influence of k on the pattern. Assume that the positive x-axis points east.
A. With increasing k, the transmission becomes more strongly directed toward the east and less strongly directed to the west. B. With increasing k, the transmission becomes more strongly directed toward the north and less strongly directed to the east. C. With increasing k, the distance of transmission becomes greater in the east and west directions. D. With increasing k, the distance of transmission becomes smaller in the east and west directions.
Use the graph of a known basic function and a combination of transformations to sketch the function.f(x) = 3(x + 1)2 + 3
A. 
B. 
C. 
D. 
Use the line graph to answer the question.Beginning with 1984, Lisa purchased a car every four years. The line graph illustrates the average fuel mileage in miles per gallon for each car. Between which two consecutive purchases did the greatest increase occur?
A. It is not possible to answer this question using the line graph. B. 1992 to 1996 C. 1984 to 1988 D. 1996 to 2000