Home
Class 11
MATHS
If vertex of a parabola is origin and di...

If vertex of a parabola is origin and directrix is x + 7 = 0 , then its latus rectum is

A

7

B

14

C

28

D

56

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CIRCLE AND CONICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|289 Videos
  • BERNOULLI TRIALS AND BINOMIAL DISTRIBUTION

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|79 Videos
  • PROBABILITY

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|239 Videos

Similar Questions

Explore conceptually related problems

If have vertex of a parabola be at origin and directrix be x + 5 =0, then its latus pectum is

Vertex is (4,3) and directrix is 3x+2y-7=0 then equation to latus rectum is

If the focus of a parabola is (3,3) and its directrix is 3x-4y=2 then the length of its latus rectum is

If the vertex of the parabola is (3,2) and directrix is 3x+4y-(19)/(7)=0, then find the focus of the parabola.

The vertex of a parabola is at (4,3) and directrix is x-y+1=0. Then the equation of its latus rectum is

The vertex of a parabola is (2,2) and the coordinats of its two extrremities of latus rectum are (-2,0) and (6,0). Then find the equation of the parabola.

Length of latus rectum of a parabola whose focus is (3,3) and directrix is 3x - 4y - 2 = 0 is

The vertex of a parabola is (a,0) and the directrix is x+y=3a. The equation of the parabola is

MARVEL PUBLICATION-CIRCLE AND CONICS -MISCELLANEOUS MCQs
  1. Equation of the circle with centre (-4,3), and touching the circle ...

    Text Solution

    |

  2. Equation of the circle concentric with the circle x^(2) + y^(2) - ...

    Text Solution

    |

  3. Radius of the circle x^2 +y^2 + 2xcos theta + 2y sin theta-8=0, is

    Text Solution

    |

  4. If the equation (K(x+1)^(2))/(3) + ((y + 2 )^(2))/(4) =1 represents a ...

    Text Solution

    |

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

    Text Solution

    |

  6. The equation of the directirx of the parabola y^2+4y+4x+2=0 is

    Text Solution

    |

  7. If the focus of a parabola divides a focal chord in segments of lengt...

    Text Solution

    |

  8. If (4,0) is the vertex , and Y-axis the directrix of a parabola , then...

    Text Solution

    |

  9. Length of latus rectum of a parabola whose focus is (3,3) and directri...

    Text Solution

    |

  10. What is the equation of the parabola, whose vertex and focus are on th...

    Text Solution

    |

  11. If vertex of a parabola is origin and directrix is x + 7 = 0 , then it...

    Text Solution

    |

  12. Points on parabola y^(2) = 12x , whose focal distance is 4, are

    Text Solution

    |

  13. The focal distance of a point on the parabola y^2= 16x whose ordinat...

    Text Solution

    |

  14. A parabola passing through the point (-4,2) has its vertex at the ori...

    Text Solution

    |

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

    Text Solution

    |

  16. Find the point on the parabola y^(2)=18x at which ordinate is 3 times ...

    Text Solution

    |

  17. The straight lines y=+-x intersect the parabola y^(2)=8x in points P a...

    Text Solution

    |

  18. Equation of the latus rectum of the parabola 2y^(2) = 5x is

    Text Solution

    |

  19. For the parabola y^(2) = 4x , the points (s) P whose focal distance i...

    Text Solution

    |

  20. The two parabolas x^2= 4y and y^2=4x meet in two distinct points. One...

    Text Solution

    |