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If 2x+y+a=0 is a focal chord of the para...

If 2x+y+a=0 is a focal chord of the parabola `y^(2)+8x=0` then a =

A

-4

B

4

C

-2

D

2

Text Solution

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PARABOLA-EXERCISE 1 A
  1. The coordinates of an endpoint of the latusrectum of the parabola y^(2...

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  2. The angle subtended by the double ordinate of length 8a of the parabol...

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  3. If 2x+y+a=0 is a focal chord of the parabola y^(2)+8x=0 then a =

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  4. PQ is a double ordinate of the parabola y^(2)+4x . The locus of its po...

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  5. The ratio in which the line segment joining the points (4,-6) and (3,1...

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  6. The number of point of intersection of the circle x^(2)+y^(2)=2ax with...

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  7. If a ne0 and the line 2bx+3cy+4d =0 passes through the points of inter...

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  8. Which of the following equations represents a parabola

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  9. The equation of the tangent to the parabola y^(2)=12x at (3,-6) is

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  10. The equation of the tangent to the parabola x^(2)=4y at (-2,1) is

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  11. The equation of the tangent to the parabola y^(2)=4x at the end of the...

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  12. The equation of the tangent to the parabola y^(2)=8x inclined at 30^(@...

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  13. The equation to the normal to the parabola y^(2)=4x at (1,2) is

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  14. The equation of the normal to the curve x^(2)=4y at (1,2) is

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  15. The line x+y= 6 is a normal to the parabola y^(2)=8x at the point

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  16. The equation of the normal at the end of latusrectum in the fourth qua...

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  17. The equation of the tangent to the parabola y^(2)=8x and which is para...

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  18. The equation of the tangent to the parabola y^(2)=16x and perpendicul...

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  19. If the line x+y+2 =0 touches the parabola y^(2)=kx then k=

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  20. Find the value of k if the line 2y=5x+k is a tangent to the parabola y...

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