9. A hyperbola has vertices (0, - 6) and (0, 6) and asymptotes y = 3/4 * x and y = - 3/4 * x Part : In what direction is this hyperbola oriented? (2 points ) Part : What are the coordinates of the center of this hyperbola ? (2 points ) Part : What are the values of a and b for this hyperbola ? (4 points ) Part IV : Write the equation of this hyperbola . ( 4 points )