関連ワード:  what is not a function on a graph    what is not considered a function on a graph    what is a non function on a graph    graph that isn't a function    what is an example of not a function on a graph    what makes something not a function on a graph    what is a non linear function on a graph    what does not represent a function on a graph    what makes a function not a function on a graph    what is not a polynomial function graph