Question 411152
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Hi
Standard Form of an Equation of an Ellipse is  {{{(x-h)^2/a^2 + (y-k)^2/b^2 = 1}}} where Pt(h,k) is the center and 
vertices are determined by distance of a and b from center
 C(-1,1): a = 5  and b = 2
 {{{(x+1)^2/25 + (y-1)^2/4 = 1}}}
{{{drawing(300,300,   -10,10,-10,10, blue(arc(-1,1,10,4)),
 grid(1),
circle(-1, 1,0.4),
graph( 300, 300, -10,10,-10,10,0,1 ))}}}