iran-konkur 2019 Q134

iran-konkur · Other · konkur-riazi_1398_specialized_new-curriculum Conic sections Equation Determination from Geometric Conditions
134- The parabola with focus $F(2,1)$ and directrix $x = 4$, the equation is which of the following?
(1) $y^2 - 2y + 4x = 11$ (2) $y^2 - 2y + 3x = 5$
(3) $x^2 - 4x + 4y = \circ$ (4) $x^2 - 6x + 2y = -4$
\textbf{134-} The parabola with focus $F(2,1)$ and directrix $x = 4$, the equation is which of the following?

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(1) $y^2 - 2y + 4x = 11$ \hfill (2) $y^2 - 2y + 3x = 5$

(3) $x^2 - 4x + 4y = \circ$ \hfill (4) $x^2 - 6x + 2y = -4$

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