Home
Class 12
MATHS
If P(-3, 2) is one end of the focal chor...

If P(-3, 2) is one end of the focal chord PQ of the parabola `y^(2) + 4x + 4y = 0`, then the slope of the normal at Q is

Text Solution

Verified by Experts

The equation of the tangent at (-3, 2) to the parabola
`y^(2)+4x+4y=0` is
`2y+2(x-3)+2(y+2)`
`=0` or `2x+4y-2=0`
`!x+2y-1=0`
Since the tangent at one end of the focal chord is parallel to the normal at the other end, the slope of the normal at the other end of the focal chord is `-1/2`
Promotional Banner

Topper's Solved these Questions

  • PARABOLA

    MOTION|Exercise EXERCISE - I|28 Videos
  • PARABOLA

    MOTION|Exercise EXERCISE - II|17 Videos
  • MONOTONOCITY

    MOTION|Exercise Exercise - 4 ( Level-II ) Previous Year (Paragraph)|2 Videos
  • PERMUTATION AND COMBINATION

    MOTION|Exercise EXAMPLE|23 Videos

Similar Questions

Explore conceptually related problems

P(-3,2) is one end of focal chord PQ of the parabola y^(2)+4x+4y=0. Then the slope of the normal at Q is

If the point P(4, -2) is the one end of the focal chord PQ of the parabola y^(2)=x, then the slope of the tangent at Q, is

If P(2, 1) is one end of focal chord PQ of the parabola x^(2)+2y- 2x-2=0 then the slope of the normal at Q is

If P(2,1) is one end of focal chord PQ of the parabola x^(2)+2y-2x-2=0 then the slope of the normal at Q is

If P(2,8) is one end of the focal chord PQ of the parabola (8t^(2), t 16) , then the mid-point of PQ is

If PQ is a focal chord of a parabola y^(2)=4x if P((1)/(9),(2)/(3)) , then slope of the normal at Q is

If P (3a , 2 asqrt(3)) is one end of a focal chord PQ of y^(2) = 4ax then PQ =

If (t^(2),2t) is one end ofa focal chord of the parabola,y^(2)=4x then the length of the focal chord will be:

MOTION-PARABOLA-EXERCISE - IV
  1. If P(-3, 2) is one end of the focal chord PQ of the parabola y^(2) + 4...

    Text Solution

    |

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

    Text Solution

    |

  3. The equation of a tangent to the parabola y^2=""8x""i s""y""=""x""+...

    Text Solution

    |

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

    Text Solution

    |

  5. If two tangents drawn from a point P to the parabola y2 = 4x are at ri...

    Text Solution

    |

  6. Given : A circle, 2x^2+""2y^2=""5 and a parabola, y^2=""4sqrt(5)""x . ...

    Text Solution

    |

  7. The equation to the line touching both the parabolas y^2 =4x and x^2=...

    Text Solution

    |

  8. Let O be the vertex and Q be any point on the parabola,x^2=""8y . I...

    Text Solution

    |

  9. Let , P be the point on the parabola y^(2) = 8x which is at a min...

    Text Solution

    |

  10. The centres of those circles which touch the circle x^(2) + y^(2) - 8...

    Text Solution

    |

  11. IF the tangent at (1,7) to the curve x ^(2) = y-6 touches the circle ...

    Text Solution

    |

  12. Tangent and normal are drawn at P(16,16) on the parabola y^2=16x which...

    Text Solution

    |

  13. The axis of a parabola is along the line y=x and the distance of its v...

    Text Solution

    |

  14. The equations of the common tangents to the parabola y = x^2 and y=-...

    Text Solution

    |

  15. Match the following. Normals are drawn at points P Q and R lying on th...

    Text Solution

    |

  16. Statement-1: The curve y=(-x^(2))/2+x+1 s symmetric with respect to th...

    Text Solution

    |

  17. Consider the circle x^2 + y^2 = 9 and the parabola y^2 = 8x. They inte...

    Text Solution

    |

  18. Consider the circle x^2 + y^2 = 9 and the parabola y^2 = 8x. They inte...

    Text Solution

    |

  19. Consider the circle x^2 + y^2 = 9 and the parabola y^2 = 8x. They inte...

    Text Solution

    |

  20. The tangent and normal at P(t), for all real positive t, to the parabo...

    Text Solution

    |

  21. Let A and B be two distinct points on the parabola y^2 = 4x. If the ax...

    Text Solution

    |