Match each equation below to the curve it represents. Each answer should be A, B, C, D, E, F, or G.

CURVES
A. Circle,
B. Ellipse,
C. Point,
D. Parabola,
E. Empty Set,
F. Intersecting lines,
G. Hyperbola,
EQUATIONS
1. $x^{2} + x y + y^{2} - 6 = 0$
2. $4 x^{2} - 3 x y - 18 = 0$
3. $3 x^{2} + 3 y^{2} - 6 x + 12 y + 60 =0$
4. $9 x^{2} + 4 y^{2} + 72 x - 16 y + 124 =0$
5. $x^{2} + y^{2} - 2 x + 2 y + 1 = 0$
6. $9 x^{2} + 4 y^{2} + 72 x - 16 y + 160 =0$
7. $y^{2} - 5 x - 4 y - 6 = 0$
8. $4 x^{2} - 4 y^{2} + 8 x + 12 y - 5 = 0$