Graph the hyperbola. Give the coordinates of the center as well as the values of a and b.y2 - 9x2 = 9
A. center (0, 0), a = 3, b = 1
B. center (0, 0), a = 3, b = 1
C. center (0, 0), a = 1, b = 3
D. center (0, 0), a = 1, b = 3
Answer: C
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The following problem involves adjustable-rate mortgage. You the given table if necessary.
Harry has a 1-year ARM for $75,000 over a 25-year term. The margin is 2%, and the index rate starts out at 2.5% and increases to 3.5% at the first adjustment. The balance of principal at the end of the first year is 
If the monthly payment for the first year is 
how much more will his monthly payment be for the second year?
A. $38.92 B. $42.29 C. $45.31 D. None of the above is correct.
In the problem, sin ? and cos ? are given. Find the exact value of the indicated trigonometric function.sin ? = 
, cos ? = 
Find cot ?.
A. 
B. 
C. 
D. 
Identify and graph the polar equation.r = 4 sin 2?
A. rose with 4 petals
B. limacon with no inner loop
C. rose with 4 petals
D. rose with 8 petals
Graph the ellipse and locate the foci.16x2 + 9y2 = 144 
A. foci at (
, 0) and (-
, 0)
B. foci at (4, 0) and (-4, 0)
C. foci at (5, 0) and (-5, 0)
D. foci at (0, 
) and (0, -
)