Without graphing the function, determine its amplitude or period as requested.y = 
sin (- 
x)Find the period.
A. 
B. 
C. 
D. 
Answer: A
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Find an equation for the sphere with the given center and radius.Center (-1, 0, 0), radius = 1
A. x2 + y2 + z2 + 2x = 1 B. x2 + y2 + z2 - 2x = 1 C. x2 + y2 + z2 - 2x = 0 D. x2 + y2 + z2 + 2x = 0
Factor by grouping.3xy + 6x + 7y + 14
A. (3x + y)(7y + 2) B. (3x + 7y)(y + 2) C. (3x + 7)(y + 2) D. (3x + 2)(y + 7)
Find the domain and the vertical asymptote of the function.f(x) = 3 - log2x
A. Domain: (3, ?); vertical asymptote: x = 3 B. Domain: [0, ?); vertical asymptote: none C. Domain: (0, ?); vertical asymptote: x = 0 D. Domain: [0, ?); vertical asymptote: x = 0
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. x + 3y = -8-14x - 4y = -2
A. (-3, 1) B. (1, -3) C. (-1, 3) D. (3, -1)