Find the amplitude, period or phase shift.Find the amplitude of y = -4 sin (2x + ?).
A. 2
B. -8
C. 4
D. ?
Answer: C
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Without graphing the function, determine its amplitude or period as requested.y = -5 sin xFind the amplitude.
A. -5?
B. 
C. 5
D. 2?
Solve the problem.Suppose that f and g are continuous and that 
and 
A. 8 B. 9 C. 11 D. 1
The speed S, in feet per second, of certain animals depends on their stride length L in inches. The relationship is
.
?
A: If one animal has a stride length 2.51 times that of another, how do their running speeds compare?B: If one animal has double the speed of anther, how do their stride lengths compare?C: If an animal with stride length 22 inches runs 16 feet per second, find the value of c.
?
What will be an ideal response?
Find the domain of the function.f(x) = 
A. (-?, 0) or (0, ?) B. (-?, ?) C. (-?, -6) or (-6, ?) D. (-?, -6)