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This lesson has students calculate the coordinate(s) of intersection of both sides of an equation to find the solution(s). The 8 questions force students to manipulate the calculator's window, to find the coordinate. It also makes them realize that some equations have multiple solutions and some have no solutions. My "visual" students often prefer finding solutions graphically after this lesson, and it serves as a nice lead into systems of equations. Included in the document is a "how to" handout that explains how to adjust the windows so the coordinates of intersection are visible, and a file that leads students to discover that all equations can be solved graphically, and the accompanying NSpire file (.tns format).