The equation of a proportional relationship is in the form of y=mx, where m is the slope of the line. To write the equation of a proportional line, students need to find the slope of the line. For example, if a proportional line passes through the point (2,6), then its slope is m=y/x = 6/2 = 3 and the equation of the line is y=3x.

The equation of a proportional relationship is in the form of y=mx, where m is the slope of the line. To write the equation of a proportional line, students need to find the slope of the line. For example, if a proportional line passes through the point (2,6), then its slope is m=y/x = 6/2 = 3 and the equation of the line is y=3x.

The equation of a proportional relationship is in the form of y=mx, where m is the slope of the line. To write the equation of a proportional line, students need to f...

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