What is direct dependence?
a direct relationship between mathematical values is a relationship in which an increase in the argument leads to an increase in the function by a certain number of times. how many times the function increases depends on the multiplier at the variable. but the simplest relationship is when the function increases the same number of times as its argument
Direct dependence, in mathematical language, is a directly proportional dependence, y = kx. If the argument x increases by a factor of 10, then the function y also increases by a factor of 10.