# Ellipse problem

• May 22nd 2008, 04:14 PM
Airjunkie
Ellipse problem
At its closet point (Perihelion), Mercury is 28.6 million miles from the sun. At its furthest point (aphelion), Mercury is 43.4 million miles from the sun. Model Mercury's orbit with an ellipse with the sun located at the origin.

a) Graph the ellipse

b) Find the model in Standard form

c) Find the model in general form

d) Find the center of Mercury's orbit

e) What is the eccentricity's of Mercury's orbit?
• May 22nd 2008, 05:27 PM
galactus
Wouldn't your perihelion be the minor axis and the aphelion axis be the major axis of the ellipse.

$\frac{x^{2}}{(200\sqrt{1085})^{2}}+\frac{y^{2}}{(2 00\sqrt{715})^{2}}=1$
• May 22nd 2008, 11:29 PM
Airjunkie
Any other help i kinda need this filled out before tommorow morning im sunk :(.

That is the exact wording, so if you guys cant figure it out. Im sunk.