Give the amplitude or period as requested.Amplitude of y = -4 sin x
A. 4
B. 2?
C. -4?
D. 
Answer: A
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Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 
B. 
; 
C. 
; 5
D. 
; 5
Write an equation in slope-intercept form of a line satisfying the set of conditions.Slope - 
; b = 
A. y = - 
x - 
B. y = 
x - 
C. y = 
x + 
D. y = - 
x + 
Find all the complex roots. Leave your answers in polar form with the argument in degrees.The complex fifth roots of -2i
A. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
B. 32(cos 54° + i sin 54°), 32(cos 126° + i sin 126°), 32(cos 198° + i sin 198°), 32(cos 270° + i sin 270°), 
C. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
D. 
(cos 45° + i sin 45°), 
(cos 117° + i sin 117°), 
(cos 189° + i sin 189°), 
(cos 261° + i sin 261°), 
Determine the vertex, focus, and directrix of the parabola and sketch its graph.(x + 4)2 = -12(y + 2)
A. vertex: (4, 2)
focus: (4, -1)
directrix: y = 5
B. vertex: (-4, -2)
focus: (-4, 1)
directrix: y = -5
C. vertex: (-4, -2)
focus: (-4, -5)
directrix: y = 1
D. vertex: (-2, -4)
focus: (-2, -7)
directrix: y = -1