Unformatted text preview: TIP 1 : Remember the Basic Principle of Graphing . For example, the graph of x = 2 consists of all points with x-coordinate 2. The graph is a vertical line. The graph of y = 2 is a horizontal line. Slopes of Horizontal and Vertical Lines m = for a horizontal line. m is undefined for a vertical line....
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- Spring '09
- Equations, Expression, Euclidean geometry, horizontal line, vertical lines