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The equation of the directrix of the par...

The equation of the directrix of the parabola whose vertex and focus are (1,4) and (2,6) respectively is a.`x+2y=4` b. `x-y=3` c. `2x+y=5` d. `x+3y=8`

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Slope of the axis of the parabola `= frac{6 − 4}{ 2 − 1} ...
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RD SHARMA-PARABOLA-Solved Examples And Exercises
  1. If the parabola y^2=4a x\ passes through the point (3,2) then find th...

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  2. If the vertex of a parabola is the point (-3,0) and the directrix is t...

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  3. The coordinates of the focus of the parabola y^2-x-2y+2=0 are a. (5/4...

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  4. The vertex of the parabola (y+a)^2=8a(x-a) is a.(-a ,-a) b. (a ,-a) c....

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  5. If the focus of a parabola is (-2,1) and the directrix has the equatio...

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  6. The equation of the parabola whose vertex is (a ,0) and the directrix ...

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  7. The parametric equations of a parabola are x=t^2+1, y=2t+1. The Cartes...

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  8. vertex and focus of a parabola are (-1,1) and (2,3) respectively. find...

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  9. The equation of the directrix of the parabola whose vertex and focus a...

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  10. If V and S are respectively the vertex and focus of the parabola y^2+6...

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  11. The directrix of the parabola x^2-4x-8y + 12=0 is

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  12. The equation of the parabola with focus (0,0) and directrix x+y=4 is a...

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  13. The line 2x−y+4=0 cuts the parabola y^2=8x in P and Q. The mid-point o...

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  14. In the parabola y^2=4a x , the length of the chord pasing through the ...

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  15. The length of the latus rectum of the parabola y^2+8x-2y+17=0 is a.2 b...

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  16. The vertex of the parabola (y-2)^2=16(x-1) is a.(1,2) b.(-1,2) c. (1,-...

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  17. The length of latus rectum of the parabola 4y^2+2x−20y+17=0 is (a) 3 (...

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  18. The focus of the parabola y=2x^2+x is a.(0,0) b. (1//2,1//4) c. (-1//4...

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  19. Which of the following points lie on the parabola x^2=4a y ? a.x=a t^...

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  20. The equation of the parabola whose focus is (1,-1) and the directrix i...

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