Deletion of Graph of a square

Comment: WP:non-notable|non-notable |original research. The graph of the (unnecessarily complicated) equation given is in general not a square but a constellation of four lines of infinite length enclosing a rectangle. The formulas given for the lower left corner and height and width are simply incorrect (unless a = b = 0). &nbsp
Stance: delete
Cited policy: Wikipedia:No original research (WP:original research)