Graph the function and then find the specified limit. When necessary, state that the limit does not exist.f(x) = 
; 
f(x) 
A. 
f(x) = -4
B. 
f(x) = 0
C. 
f(x) = 4
D. 
f(x) = -4
Answer: A
Mathematics
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Determine the coordinates of the focus and the equation of the directrix of the parabola.4y2 = x
A. F
, x = - 
B. F
, x = 
C. F
, y = - 
D. F
, x = - 
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Write the expression in the standard form a + bi.
A. 
- 
i
B. 
+ 
i
C. 
- 
i
D. 
+ 
i
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Find an equation for the conic. If the conic is a parabola, assume that the vertex is at the origin. If the conic is an ellipse or hyperbola, assume that it is centered at the origin.Vertex at (0, -3) and e = 
A. 
- 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
- 
= 1
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Sketch the graph of the function and its inverse on the same coordinate axes.f(x) = 
A. 
B. 
C. 
D. 
Mathematics