Evening Forum I have a interesting word problem..
What's the difference between saying "The thicker a beam is, the stronger it is." and saying "The strength of a beam varies directly as its thickness."?
any comments ?
However, the 2nd statement is a statement of direct proportionality. If strength = S, and thickness = T, then the 2nd statement says where k is some constant! This means that if you change S, then T change proportionally!
So all in all. The first statement does not specify how proportionally one variable changes to another, but the 2nd statement does!