!! used as default html header if there is none in the selected theme. Line choice

# Line choice --- Introduction ---

There are 4 ways to describe a general line (not passing through the origine, neigher vertical nor horizontal) in the cartesian plane: by an implicite equation, an equation giving y as a function of x, one giving x as a function of y, or a system of parametric equations.

This exercise gives you a training occasion to get familiarized with these different descriptions of the line, as well as the graphics of the line.
Set up
• which .
• And a session will be composed of with a score assigned at the end of each session.
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• Description: exercise : recognize a line by equation or by graph. Serveur Wims de l'ESPE-Nice-Toulon - Université de Nice - Sophia Antipolis
• Keywords: interactive mathematics, interactive math, server side interactivity, geometry, algebra, lines, parametric_curves