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If the focus is (1,-1) and the directrix...

If the focus is (1,-1) and the directrix is the line x+2y-9=0, the vertex of the parabola is

A

(1,2)

B

(2,1)

C

(1,-2)

D

(2,-1)

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PARABOLA-EXERCISE 1 A
  1. The vertex of the parabola x^(2)+12x-9y=0 is

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  2. A parabola has the origin as its focus and the line x=2 as the directr...

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  3. If the focus is (1,-1) and the directrix is the line x+2y-9=0, the ver...

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  4. The locus of the vertices of the family of parabolas y = (a^(3)x^(2))/...

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  5. The focus of the parabola y^(2)-x-2y+2=0 is

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  6. The focus of the parabola y^(2)-4y-8x-4=0 is

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  7. The focus of the parabola x^(2)-2x-8y-23=0 is

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  8. The distance between the vertex and the focus of the parabola x^(2)-2x...

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  9. The two ends of latusrectum of a parabola are the points (3,6) and (-5...

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  10. If (2,0) is the vertex and y-axis is the directrix of a parabola then ...

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  11. The length of the latus rectum of the parabola y^(2) +8x-2y+17=0 is

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  12. The length of the latus rectum of the parabola 4y^(2)+12x-20y+67=0 is

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  13. The length of the latus rectum of the parabola x^(2)-4x+8y+28=0 is

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  14. The length of the latus rectum of the parabola 3x^(2)-9x+5y-2=0 is

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  15. The point (3,4) is the focus and 2x-3y+5=0 is the directrix of a parab...

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  16. The length of the latusrectum of the parabola whose focus is (mu^(2)/(...

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  17. Latus rectum of the parabola whose axis is parallel to the y-axis and ...

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  18. The point (3,4) is the focus and 2x-3y+5=0 is the directrix of a parab...

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  19. If the parabola y^(2)=4ax passes through (-3,2) then the length of its...

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  20. If the straight line y=mx+c is parallel to the axis of the parabola y^...

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