Question 427124
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Hi
{{{(x-2)^2/36 + (y+4)^2/25 = 1}}}
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 a and b  are the respective vertices... distances from center.

{{{drawing(300,300,   -10,10,-10,10,  arc(2,-4,12,10),
 grid(1),
circle(2, -4,0.4),
graph( 300, 300, -10,10,-10,10))}}}