Determine the amplitude and range of the function and sketch its graph.y = -2 cos 
x
A. amplitude: 2; range: [-2, 2]
B. amplitude: 2; range: [0, 2] 
C. amplitude: 
; range: (-?, ?)
D. amplitude: 2; range: [-2, 2]
Answer: A
Mathematics
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Use conversion factors to convert the units of measure.
pounds to ounces
A. 90 oz. B. 180 oz. C. 360 oz. D. 184 oz.
Mathematics
Solve the system by the substitution method.
+ y2 = 16 
A. 
B. 
C. 
D. 
Mathematics
Give the symbolic representation for the function f.Function f takes the square root of the quantity x plus 16.
A. f(x) = 
+ 16
B. f(x) = -16 + 
C. f(x) = 
D. f(x) = 
Mathematics
Which of the following graphs are equivalent?
a. I, II, & III
b. I & II
c. II & III
d. I & III
Mathematics