Simplify the difference quotients 
and 
for the following function. Rationalize the numerator when necessary.f(x) = 
A. 
; 
B. 
; 
C. - 
; - 
D. - 
; - 
Answer: D
Mathematics
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A. 25% B. 2.25% C. 2.5% D. 0.0025%
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Solve the equation by completing the square.x2 + 2x + 3 = 0
A. -1 ± 2i
B. -1 ± i
C. 1 ± i
D. 1 ± 2i
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Find the vertices of the ellipse.
+ 
= 1
A. (1 + 3
, 3), (1 - 3
, 3)
B. (-5, 3), (7, 3)
C. (6, 3), (-6, 3)
D. (- 3
, 3), (3
, 3)
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