Standardform: ax² + bx + cy² + dy + e= 0
If a=c, then the equation is a circle.If you have an equation like 5x² + 5y²=25
If a or c, are different signs the equation is a hyperbola. Like this equation 2x² - 2y²= 6
If a can NOT = c, and they are the same signs then the equation is an ellipse. this equation would looke like 4x² + 2y²= 25
If a or c= 0, then the equation is a parabela. it would look something like this 2x² + 4y= 3.
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