The equation .

Compare the equation direct variation formula: , Then slope .

To find the y-intercept.

                                (Substitute x = 0)

y = 0

The coordinate point is (0, 0).

Use these ordered pairs to graph the equation.

1.    Draw a coordinate plane.

2.    Plot the points.

3.  From the point (0, 0), move down 3 units and right 1 unit.

4.    Draw a line through these points.

To graph the equation .

The solution of the graph eqution .