Determine the vertex, focus, and axis of symmetry of the parabola in the table below with the given equation. Sketch the graph, and inlcude theses points and lines.
(a) x^2= -4y
(b) 3y^2=24x
(c) (y+5/2)^2= -5(x-9/2)
(d) x^2+6x+8y=7
(e) y^2-12x+8y= -40
(f) 16x^2=72x-112y= -221
item | vertex | Focus | Directrix | Axis of Symmetry |
---|---|---|---|---|
(a) (b) (c) (d) (e) (f) |