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- If the distance from the focus is 10 uni...

Q. |
## If the distance from the focus is 10 units and the distance from the directrix is 30 units, then what is the name of the conic? |

A. | circle |

B. | parabola |

C. | hyperbola |

D. | ellipse |

Answer» D. ellipse | |

Explanation: eccentricity is defined as the ratio of the distance from the focus to the distance from the directrix. hence from the formula of eccentricity, e = 10 ÷ 30 = 0.3333. since the value of eccentricity is less than one the conic is an ellipse. |

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