Question 569404
Write an equation of an ellipse given the vertices (-2,4) & (-2,-2) and co-vertices (-3,1) & (-1,1).
**
Standard form of equation for an ellipse with vertical major axis: 
(x-h)^2/b^2+(y-k)^2/a^2=1, a>b, (h,k) being the (x,y) coordinates of the center.
..
For given ellipse:
center: (-2,1)
length of vertical major axis=6=2a
a=3
a^2=9
length of minor axis or co-vertices=2=2b
b=1
b^2=1
Equation of given ellipse:
(x+2)^2/1+(y-1)^2/9=1