Question 932661
{{{64x^2+25y^2=1600}}}


{{{(64/1600)x^2+(25/1600)y^2=1}}}


{{{x^2/25+y^2/64=1}}}


{{{x^2/(5^2)+y^2/(8^2)=1}}}
The longer axis is along the y-axis, and the distance from center of the ellipse to the vertex along this major axis of the ellipse is 8.  The length of the major axis is {{{2*8=highlight(16)}}}.