how can a
proportional
relationship can be
determined?

Question

how can a 
proportional
relationship can be
determined?

anonymous · Answer

A proportional relationship between two quantities is one in which the two quantities 
vary directly with one and other. If one item is doubled, the other, related item is also 
doubled. Because of this, it is also called a direct variation. The equations of such 
relationships are always in the form y = mx , and when graphed produce a line that 
passes through the origin. In this equation, m is the slope of the line, and it is also 
called the unit rate, the rate of change, or the constant of proportionality of the function.