In survey of 200 game lovers, it was found that 130 like football, 90 like cricket and 20 did not like both games. how many persons were there who liked both games? *

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