Question 617574
The general form for these equations is:
{{{Ax^2+Bxy+Cy^2+Dx+Ey+F = 0}}}<br>
For our equation this makes
A = 2
B = -4
C = 8
I'll leave it up to you to calculate {{{B^2-4AC}}}<br>
The following will explain how to use the value of {{{B^2-4AC}}}:<ul><li>If {{{B^2-4AC = 0}}} then you have the equation for a parabola.</li><li>If {{{B^2-4AC > 0}}} then you have the equation for a hyperbola.</li><li>If {{{B^2-4AC < 0}}} then<ul><li>If A = B, then you have the equation for a circle.</li><li>Otherwise, you have the equation for an ellipse.</li></ul></li></ul>