# Math

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

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1. V(0,0), F(4,0).
VF = 1/4a = 4-0 = 4
1/4a = 4
4a = 1/4
a = 1/16.

Vertex Form: X = a(y-k)^2 + h.
X = 1/16(y-0)^2 + 0
X = (1/16)y^2 = y^2/16.

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