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Find the focus, directrix, focal diameter, vertex and axis of symmetry for the parabola

 `-38.64 y = x^2` 

The focus is the point  
The equation of the directrix =  
The focal diameter is  
The vertex is the point  
The equation of the axis of symmetry =  

Be sure to enter each answer in the appropriate format. Hint: What is the appropriate notation for a line or a point?

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