When first introduced to graphing lines, we often use a table of values to plot points and connect them. There are several other methods of graphing lines, including using a point and the slope. Sometimes graphing lines using an equation involves the same methods as using a table of values. Since we graph lines in the coordinate plane, it is necessary to understand how to connect graphs, tables and equations.
Sample Problems (6)
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Graph y = -2x + 3 using a table of values.
Graph x − 2y = 6 using a table of values.
Without graphing, determine whether each point is on the line y = 3x + 2.