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 Equation, of some sort. I dont understand.
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Posted - 08/30/2012 :  21:15:31  Show Profile  Reply with Quote
When projected onto a two-dimensional plane the surface of the Earth approximates a circle. If we position the city of Toowoomba at the origin (0, 0) then the equation of this circle is given by:
x^2 + y^2 – 4x + 6y – 3468 = 0

A telecommunication satellite is on orbit 0.6 units above the Earth’s surface. Find the equation of the circle described by the satellite.

Hint: Rewrite the given equation to find the centre and the radius of the circle described by the Earth’s surface.
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Posted - 08/31/2012 :  08:09:41  Show Profile  Reply with Quote
Use the hint and complete the square on x and y to re-write the equation of the circle in its standard form.
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