Question 1185963
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The major axis is horizontal; the center of the ellipse is halfway between the vertices (or halfway between the foci), at (3,-3).  The equation is<br>
{{{(x-3)^2/a^2+(y+3)^2/b^2=1}}}<br>
a is the distance from the center to each vertex = 10
c is the distance from the center to each vertex = 8
c^2=a^2-b^2 --> b=6<br>
ANSWERS:
a=10; b=6
The equation is {{{(x-3)^2/100+(y+3)^2/36=1}}}<br>