Does the graph represent a function?

This graph does not represent a function.Here use this. If the line touches let’s say -2. And it curves around and touches it again it’s not a function. That is the most non function graph I’ve ever seen.

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