SOLUTION: Write the equation of a parabola with a vertex at (0, 0) and a focus at (-4, 0).

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Question 893189: Write the equation of a parabola with a vertex at (0, 0) and a focus at (-4, 0).
Answer by lwsshak3(11628) About Me  (Show Source):
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Write the equation of a parabola with a vertex at (0, 0) and a focus at (-4, 0).
This is an equation of a parabola that opens leftward with vertex at the origin.
Its basic equation: y^2=-4px
axis of symmetry: y=0 or x-axis
p=4 (distance from vertex to focus on the axis of symmetry)
4p=16
equation: y^2=-16x