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.
Other exercises on: Lines Parametric curvesThe most recent version
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Description: exercise : recognize a line by equation or by graph. interactive exercises, online calculators and plotters, mathematical recreation and games
Keywords: interactive mathematics, interactive math, server side interactivity, geometry, algebra, lines, parametric_curves