Find the amplitude or period as requested.Find the period of y = -3 cos 
.
A. 2?
B. 4?
C. 3?
D. 
Answer: B
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Find f(x) = a(x - h)2 + k so that f models the data exactly.
A. f(x) = -2(x + 2)2 + 5 B. f(x) = -(x - 2)2 + 5 C. f(x) = (x + 2)2 + 5 D. f(x) = -2(x - 5)2 + 2
Solve the problem.As Sunee improves her algebra skills, she takes 0.8 times as long to complete each homework assignment as she took to complete the preceeding assignment. If it took her 50 minutes to complete her first assignment, find how long it took her to complete the fifth assignment. Find the total time she took to complete her first five homework assignments. (Round to the nearest minute.)
A. 20 min; 148 min B. 16 min; 148 min C. 20 min; 168 min D. 16 min; 168 min
Find the asymptotes of the hyperbola.
- 
= 1
A. y = 
x and y = - 
x
B. y = 
x and y = - 
x
C. y = 
x and y = - 
x
D. y = 
x and y = - 
x
Evaluate the integral
?
?
A. 9.5 B. 9 C. 31.5 D. 22.5 E. 13.5