Identify where f is increasing and where f is decreasing.f(x) = 
A. increasing: (-?, 7]; decreasing: [7, ?)
B. increasing: [-7, ?); decreasing: (-?, -7]
C. increasing: [7, ?); decreasing: (-?, 7]
D. increasing: (-?, -7]; decreasing: [-7, ?)
Answer: C
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Solve the problem.Find the foci and asymptotes of the following hyperbola:x2 - 
= 1
A. Foci: (
, 0), (-
, 0); Asymptotes: y = 4x, y = -4x
B. Foci: (4, 0), (-4, 0); Asymptotes: y = 
x, y = - 
x
C. Foci: (0, 
), (0, -
); Asymptotes: y = 4x, y = -4x
D. Foci: (
, 0), (-
, 0); Asymptotes: y = 
x, y = - 
x
Solve the problem.Decide whether or not the points are the vertices of a rectangle.(-10, -4), (-1, -18), (13, -9), (4, 5)
A. No B. Yes
A bank credit card charges interest at the rate of 13% per year, compounded monthly. If a senior in college charges her last tuition bill of $1,100 and intends to pay it in one year, what will she have to pay? Round to the nearest cent. ?
A. $1,251.90 B. $1,265.40 C. $1,251.84 D. $1,111.92 E. $1,239.51
Find the surface area of the solid. Use 3.14 for ?.
A. 243 sq ft B. 486 sq ft C. 729 sq ft D. 648 sq ft