Find the equation of the parabola whose focus is (2, -1) and directrix is x + 2y -1 = 0. A) 4x² - 4xy + y² -18x + 14y + 24 = 0 B) 5x² - 4xy + y² -18x + 14y + 24 = 0 C) x² - 4xy + 4y² -18x + 14y + 24 = 0 D) x² - 4xy + 5y² -18x + 14y + 24 = 0 E) 4x² - 4xy + 4y² -18x + 14y + 24 = 0

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The equation of a parabola with focus (h, k) and directrix Ax + By + C = 0 is derived using the definition of a parabola. The correct equation that satisfies the given focus and directrix is option A.

Find the Equation of the Parabola Whose Focus Is (2