Descartes and Cartesian Coordinates. Graphs 1: Straight Line Graphs. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities. Graphing linear equations and inequalities.