Description : Woking out if a graph is will be proportional or not?
Last Answer : E is proportional to m if they each have the same exponent. So in the formula for kinetic energy, K = (½)mv^2, K is proportional to m because each has a power of 1. In your second example, E = (½)vm^2, E is not proportional to m; E is proportional to m squared.