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Give the Focus, Directrix, and Axis for the Parabola y2=28xy ^ { 2 } = 28 x

Question 172

Multiple Choice

Give the focus, directrix, and axis for the parabola.
- y2=28xy ^ { 2 } = 28 x


A) (0,7) ,y=−7,y( 0,7 ) , y = - 7 , y -axis
B) (7,0) ,x=−7,x( 7,0 ) , x = - 7 , x -axis
C) (7,7) ,x=7,x( 7,7 ) , x = 7 , x -axis
D) (7,0) ,x=−7,y( 7,0 ) , x = - 7 , y -axis

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