Find the foci and endpoints of each axis for the given ellipse.
+ 
= 1
A. Foci: (0 , ±
); vertices: (0, ± 4);
endpoints of the minor axis: (± 3, 0)
B. Foci: (±
, 0); vertices: (± 4, 0);
endpoints of the minor axis: ( 0 , ± 3 )
C. Foci: (± 7, 0 ); vertices: (± 16, 0);
endpoints of the minor axis: (0, ± 3)
D. Foci: (± 4, 0); vertices: (±
, 0 );
endpoints of the minor axis: (± 3, 0)
Answer: B
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Sketch a graph of a function with the given properties. If it is impossible indicate this and justify your answer.f is continuous, but not necessarily differentiable, has domain [-2, 4], and has two local maxima and one local minimum on (-2, 4). 
What will be an ideal response?
Find an equation of a parabola satisfying the given conditions.Focus at (-4, 0), directrix x = 4
A. y2 = 16x
B. 16y = x2
C. y = - 
x2
D. x = - 
y2
Use the calculator graph to find the solution set of the given equation or inequality.
> x - 1 
A. (-?, 3) B. [0, 2) C. [-1, 3) D. (3, ?)
Evaluate.(-9)2
A. -81 B. 18 C. -512 D. 81