Question 949594
Length of major axis: 66 
Vertices on the x-axis. 
Passes through the point (16.5 ,3 ) 
Equation of the ellipse: 
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Given ellipse has a horizontal major axis
Its standard form of equation: {{{(x-h)^2/a^2+(y-k)^2/b^2}}}, a>b, (h,k)=coordinates of center
length of major axis=66=2a
a=33
a^2=1089
y-coordinate of center=0=k
using coordinates of given point (16.5,3):
{{{(16.5-h)^2/1089+(3-0)^2/b^2}}}
need more given information to finish