- #1
cocoavi
- 11
- 0
I have been taught that the equation [tex] Ax^2 + Cy^2 +Dx + Ey +F = 0 [/tex] represents a general form of conics.
Then the conditions of the coefficients in the equation could identify which type of conics the equation represents...
Circle: A=C
Ellipse: A does not=C and AC>0
Hyperbola: AC<0 and if the coefficients have opposite signs
Parabola: A=0 OR C=0
The thing that I do not understand is why... I was wondering if anyone knows a way to explain the reasons to me?
Then the conditions of the coefficients in the equation could identify which type of conics the equation represents...
Circle: A=C
Ellipse: A does not=C and AC>0
Hyperbola: AC<0 and if the coefficients have opposite signs
Parabola: A=0 OR C=0
The thing that I do not understand is why... I was wondering if anyone knows a way to explain the reasons to me?