Write down equation in standard form of conic with given characteristics:
a) parabola: vertex (3,-3) and focus (3, -9/4)
b) ellipse: center (2,-1), vertex (2, 1/2), length of minor axis: 2
c) hyperbola: foci: (2,5) and (2,-5), and covertices: (-2,0) and (6,0)
d) hyperbola: vertices (3,0) and (3,4) and asymptotes: y= 2/3x and y= 4 - 2/3x
e) circle: diameter with endpoints P(-4, -3) and Q(-10,5)