If r (a) . .. ...then the graph of r is a parabola that opens V and is v the graph of f (x) = 12. upward to the left downward to the rightIf r (a) = ...then the graph of r is a parabola that opens v and is v the graph of f (x) = 12. wider than more narrow than the same width asand has a vertex at: enter the vertex as an ordered pair)