The slope is 5/-5. Hope this helps!
D. xb-a=y because it the close to being it it looks like
160,582 = 100,000 + 60,000 + 500 + 80 + 2
:)
(A)
Vertex:(0,4)
Focus : (0, -7/2)
Axis of symmetry: x = 0
Directrix : y = - 9/2
(B)
Vertex:(-3,-4)
Focus : (-3,-31/8)
Axis of symmetry: x = -3
Directrix: y = - 33/8
