関連ワード:  is circle graph a function    is a circle graph a polynomial function    is a circle on a graph a function or not    is a circle on a graph a function of x    is a circle on a graph a function or relation    is a half circle on a graph a function    is a full circle on a graph a function    is the graph of a circle a function describe why or why not    is a circle on a graph considered a function    is a circle in the middle of a graph a function