The balance of Mr. Widget's account when he paid his loan off was $1170. His principal amount was $900 and his rate was at 2%. How many years did he have the account setup?

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