Homework Help: Math

Posted by PLEASE HELP! on Monday, May 7, 2012 at 9:07pm.

Write the standard equation of the ellipse with the given characteristics

Vertices: (0,7) (0,-7)
foci: (0,2) (0,-2)

Ajay ? ---- Math - Reiny, Monday, May 7, 2012 at 9:33pm
If this is Ajay , please don't switch names

this is a routine question
looks like (0,0) is the centre
a = 7 , and c = 2
we know
b^2 + c^2= a^2
b^2+ 4 = 49
b^2= 45

x^2 /49 + y^2 / 45 = 1

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