SOLUTION: Determine the vertex, focus, directrix, and axis of symmetry of the parabola with the given equations: 1. X2 = -4y 2. 3y2 = 24x 3. (y + 5/2)2 = -5(x

SOLUTION: Determine the vertex, focus, directrix, and axis of symmetry of the parabola with the given equations: 1. X2 = -4y 2. 3y2 = 24x 3. (y + 5/2)2 = -5(x - 2/9)

Question 1091307: Determine the vertex, focus, directrix, and axis of symmetry of the parabola with the given equations:
1. X2 = -4y
2. 3y2 = 24x
3. (y + 5/2)2 = -5(x - 2/9)
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

1.
is the standard equation for an up-down facing parabola
you have
or

vertex is at: (,)
=>
focus: (, )
directrix is above vertex p units:
2.

->
->
vertex is at: (,)
focus:(, )
directrix:

3.
->
->,
->
vertex: (, )
focus: (, )=(, )
directrix:

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