Find an equation for the circle.Center at (0, 1), radius 3
A. x2 + (y + 1)2 = 3
B. (x - 1)2 + y2 = 9
C. x2 + (y - 1)2 = 9
D. (x + 1)2 + y2 = 9
Answer: C
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Show that the equation is not an identity by listing the value(s) of the variable from among 0, 
, 
, and - 
for which the equation is false.sin ? + sin 
= sin (? + 
)
A. 
and 0
B. 
, 
, and - 
C. 
, 
, and 0
D. 
and - 
Evaluate the improper integral whenever it is convergent.
?
?
A. 
B. ?
C. ?
D. ?
E. divergent
Find the center, transverse axis, vertices, and foci of the hyperbola.
- 
= 1
A. center at (0, 0)
transverse axis is y-axis
vertices: (0, -5), (0, 5)
foci: (- 
, 0), (
, 0)
B. center at (0, 0)
transverse axis is x-axis
vertices: (-11, 0), (11, 0)
foci: (- 
, 0), (
, 0)
C. center at (0, 0)
transverse axis is y-axis
vertices: (-5, 0), (5, 0)
foci: (-11, 0), (11, 0)
D. center at (0, 0)
transverse axis is y-axis
vertices: (0, -5), (0, 5)
foci: (0, - 
), (0, 
)
Graph the function.y = -2 cos 
x
A. 
B. 
C. 
D. 