Find an equation for the ellipse described.Center at (0, 0); focus at (0, -6); vertex at (0, 7)

A.  +  = 1
B.  +  = 1
C.  +  = 1
D.  +  = 1

Answer: D

Mathematics

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Solve the equation. = 

A. - 
B. - 
C. 1
D. - 1

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Graph. -  = 1

A.

B.

C.

D.

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Express the number as the ratio of two integers.0.444444 . . .

A.  
B.  
C.
D.  

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Mathematics

Determine if the plot is the graph of a function.

A. Yes B. No

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Mathematics