Directly Proportional Graph Physics. Weight varies directly with mass. The symbol for direct proportion is propto.
The constant of proportionality is the scale of the map. Directly proportional means that the rate of increase in one variable is the same as the rate of increase in the other variableIf you double one thing the other thing doubles. A directly proportional relationship is a special type of linear relationship.
So lets look at the graph and see if by whatever factor A changes B changes by the same factor.
When one variable is equal to 0 the second variable will also have a value of 0. Y and x are directly proportional. A directly proportional relationship is a special type of linear relationship. When a directly proportional relationship is graphed the result is a linear graph with slope k and y-intercept at the origin.
