Describe the behavior of the function below as x approaches zero.
?
?
A. f ? +? as x ? 0.
B. f ? 1 as x ? 0.
C. f ? 0 as x ? 0.
D. f ? -1 as x ? 0.
E. f ? -? as x ? 0.
Answer: C
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Write the negation of the proposition.Everyone is asleep.
A. Not everyone is asleep. B. Nobody is awake. C. Everyone is awake. D. Nobody is asleep.
Simplify.9
+ 2
A. 11k2 + 9k - 4 B. 11k2 - 9k + 4 C. 4k2 - 9k - 4 D. 11k2 - 9k - 4
Match the polar equation with its graph.r = 
A. 
B. 
C. 
D. 
Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.xy +16 = 0
A. ? = 36.9°
+ 
= 1
ellipse
center at (0, 0)
major axis is the x'-axis
vertices at (±2, 0)
B. ? = 45°
+ 
= 1
ellipse
center at (0, 0)
major axis is y'-axis
vertices at (0, ±4
)
C. ? = 45°
y'2 = -32x'
parabola
vertex at (0, 0)
focus at (-8, 0)
D. ? = 45°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is y'-axis
vertices at (0, ±4
)