Question

Which equation represents an inverse variation? y = 2x y = x/3 y =4/x y = –5x

Answer 1

First of all, you should know that:
 direct variation:
 y = c * x
 Inverse variation:
 y = c / x
 where, c is any number that belongs to the real ones.
 answer:
 An equation that represents an inverse variation is
 y = 4 / x