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Graphing Linear Equation in Two Variables

In this activity you are presented with linear equations in two variables of the form ax + by = c You will find the values of y corresponding to the given x values in the table. The three pairs of x and y values form the x, y coordinates of three points. Plot the points onto the graph by dragging them to the correct position. See how the three points form a straight line. In fact, all the points on the straight line will have y-coordinate values which correspond to the calculated y values when the respective x-coordinates are substituted into the equation.