Circles and more

• If a=c, then the equation is a circle.                          3x²+3x²=36

                                              

• If a does not equals c, and thay are the same signs then the equation is an elipse.     2x²+x²=25

• If a or c = 0 then the equation its a parabola.                            y²-2x=5

• If a or c are different signs, the equation is a hyperbola.           2x²-2x²=24