TMaree
New Member
Australia
2 Posts 
Posted  08/30/2012 : 21:15:31

When projected onto a twodimensional 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.


