How do you determine circle, parabola, ellipse, or hyperbola from equation #4x^2 - 9y^2 - 16x +18y -11 = 0#?
EVERY conic section can be written with the general equation :
Here is how you distinguish the various conic sections from the coefficients in the general equation:
parabola : either A or B equals 0 (only one squared term in the equation)
So, in the problem stated above, since
hope that helped