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If the lines 2x+3y+12 =0 and x-y+4k=0 ar...

If the lines 2x+3y+12 =0 and x-y+4k=0 are conjugate with respect to the parabola `y^(2)=8x ` then the value of k is

A

-3

B

3

C

2

D

-2

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-PARABOLA-EXERCISE 1B
  1. If the points (2,4) ,(k,6) are conjugate with respect to the parabola ...

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  2. If the lines 2x+3y+12 =0 and x-y+k =0 are conjugate with respect to th...

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  3. If the lines 2x+3y+12 =0 and x-y+4k=0 are conjugate with respect to th...

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  4. The polar of (-a,-2a) w.r.t the circle x^(2)+y^(2)-2ax-3a^(2)=0 touche...

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  5. The locus of poles of tangents of the parabola y^(2)=4ax w.r.t the par...

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  6. If the polar of a point P w.r.t the circle x^(2)+y^(2)=a^(2) touches t...

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  7. The locus of the midpoints of the focal chords of the parabola y^(2)=4...

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  8. If the polar of a point P w.r.t the circle x^(2)+y^(2)=a^(2) touches t...

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  9. The chord of contact of a point P to the parabola y^(2)=4ax touch the ...

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  10. The locus of the point for which the chord of contact w.r.t y^(2)=4ax ...

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  11. The locus of poles of chords of the parabola y^(2)=4ax which are at a...

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  12. A chord of the parabola y^(2) =4ax subtends a right angle at the verte...

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  13. The equation of the chord of the parabola y^(2)=2x having (1,1) as its...

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  14. The midpoint of the chord 2x-y-2=0 of the parabola y^(2)=8x is

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  15. The tangent at the point P (x(1),y(1)) to the parabola y^(2)=4ax meets...

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  16. If the tangent at the point P (2,4) to the parabola y^(2)=8x meets the...

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  17. The locus of the midpoints of the focal chords of the parabola y^(2)=4...

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  18. Let O be the origin and A be a point on the curve y^(2)=4x. Then the l...

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  19. The locus of the midpoints of the focal chords of the parabola y^(2)=4...

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  20. The locus of the midpoints of the focal chords of the parabola y^(2)=6...

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