Please help! The equation for an ellipse with vertices (-4,2), (2,2), (-1,-2), and (-1,6) is ?

Question

anonymous · Answer

a. (x+1)^2/9 + (y-2)^2/16 =1
b. (x-1)^2/9 + (y+2)^2/16 =1
c. (x+1)^2/16 + (y-2)^2/9 =1
d. (x-1)^2/16 + (y+2)^2/9 =1

anonymous · Answer

its a

anonymous · Answer

need explanation?

anonymous · Answer

Yes please :)

anonymous · Answer

ok

anonymous · Answer

vertical elipse, exchange a and b te rest is normal

anonymous · Answer

|dw:1333406015523:dw|first plot the vertices

anonymous · Answer

then we draw a line which joins the verticeslying on the same axis
|dw:1333406263435:dw|

anonymous · Answer

then we draw a line which joins the verticeslying on the same axis
|dw:1333406263435:dw|

anonymous · Answer

Oh, I see. Thank you so much for explaining!

anonymous · Answer

yeah then just determine the center of the ellipse and the lenght of major axis a and the minor axis b and your all set

anonymous · Answer

You deserve more than one medal. Too bad I can't give one :/

anonymous · Answer

nah, to be able to help others is enough medal already