What does 5 - n represent a- some number less than five b- some number more than five c- five more than some number d- five less than some number

I think it's "a" assuming it isn't 0

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for