Find the vertices and foci of the given ellipse.
+ 
= 1
A. Vertices: (0, 9) and (0, -9);
Foci: (0, 3
) and (0, -3
)
B. Vertices: (9, 0)and (-9, 0)
Foci: (3
, 0) and (-3
, 0)
C. Vertices: (0, 81), (36, 0);
Foci: (0, 9) and (6, 0)
D. Vertices: (0, 81) and (0, -81);
Foci: (0, 9) and (0, -9)
Answer: A
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Solve the problem.Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with a embroidery of a Great Pyrenees dog on the front. There are fixed costs of $640 to set up for production, and variable costs of $32 per jacket. Write a linear equation that can be used to determine the total cost, y, encountered by Marty's Company in producing x jackets, and use the equation to find the total cost of producing 68 jackets.
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Solve the application problem.The population of deer in a forest was estimated every year from 1991 to 1996. The graph shows the data. What was the deer population according to the 1993 estimate?Deer Population
Year
A. 550 deer B. 350 deer C. 400 deer D. 500 deer
If 
and g(x) = x 2 - 6, x ? 0, determine algebraically whether f and g are inverse functions.
a. Yes, f and g are inverse functions.
b. No, f and g are not inverse functions.
Graph the function corresponding to the sequence defined. Use the graph to decide whether the sequence converges or diverges.an = (61 + n)1/n
A. Diverges B. Converges