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Mathematics, 07.04.2021 05:50 interndon

Find the standard form of the equation of the parabola with a focus at (7,0) and a directrix at x = -7. Answer Choices:
A: y = 1/28x^2
B: x = 1/28y^2
C: -28y = x^2
D: y^2 = 14x

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