SOLUTION: find the ellipse in standard form that passes through the point(3,sqrt(7)) and (sqrt(3),3)?

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Question 480300: find the ellipse in standard form that passes through the
point(3,sqrt(7)) and (sqrt(3),3)?

Found 2 solutions by Edwin McCravy, Alan3354:
Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
point(3,) and (,3)?


Here are those two points plotted: approximately (3,2.6) and (1.7,3)



I will assume you meant the ellipse with center at the origin; 
otherwise there would be many possibilities.

Since those points are as they are, the major axis will be
horizontal and the ellipse will look like this:  ᆼ
So its equation will be:



Substitute the first point: (x, y) = (3, )





Substitute the second point: (x, y) = (,3)?




We have this system of equations:



Important!:
DO NOT CLEAR OF FRACTIONS BUT SOLVE BY ELIMINATION:

Multiply the 2nd equation through by -3 to eliminate the
terms in aČ:



Add the equations:







Substitute 10 for bČ in the first equation:





Multiply through by 10aČ







Substitute 30 for aČ and 10 for bČ






That's the equation.  

The vertices are (±,0), approximately (±5.5,0)
The covertices are (0,±), approximately (0,±3.2)
Here's the graph:




Edwin



Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
2 points don't define an ellipse.
An infinite # of ellipses pass thru those 2 points.

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