Examples

• The equation Ax² + Bx + C = 0 is a parametric equation. Its solutions are [latex]x_1=\dfrac {-B+\sqrt {B^{2}-4AC}} {2A}[/latex]et [latex]x_2=\dfrac {-B-\sqrt {B^{2}-4AC}} {2A}[/latex].
• The equation y = mx + 12 is a parametric equation with a parameter m.
• The equation xy = k is a parametric equation with a parameter k.