# Direct Variation, Inverse Variation, And Joint Variation: Question Preview (ID: 29613)

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z varies jointly with x and y. When x = -1/4 and y = -3, z = 15. Find z when x = -4 and y = 5. |
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a) z = -400 | b) z = 400 | c) z = 200 | d) z = -200 | |

z varies jointly with x and y. When x = 8 and y = 6, z = 12. Find z when x = -4 and y = 5. |
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a) z = -5 | b) z = 5 | c) z = 1/5 | d) z = -1/5 | |

z varies jointly with x and y. When x = 2 and y = -6, z = 24. Find z when x = -4 and y = 5. |
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a) z = 40 | b) z = -40 | c) z = 20 | d) z = -20 | |

y varies inversely with x. If y = -7 when x = 5/3, find y when x = 3. |
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a) y = -35/9 | b) y = 35/9 | c) y = 9/35 | d) y = -9/35 | |

y varies inversely with x. If y = -5/4 when x = -4, find y when x = 3. |
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a) y = 5/3 | b) y = -5/3 | c) y = 15/16 | d) y = -15/16 | |

y varies inversely with x. If y = -1/6 when x = -12, find y when x = 3. |
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a) y = 2/3 | b) y = -2/3 | c) y = 3/2 | d) y = -3/2 | |

y varies inversely with x. If y = 2 when x = 7, find y when x = 3. |
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a) y = 14/3 | b) y = -14/3 | c) y = 63 | d) y = -63 | |

y varies inversely with x. If y = 28 when x = 3/4, find y when x = 3. |
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a) y = 7 | b) y = -7 | c) y = 3 | d) y = -3 | |

y varies inversely with x. If y = 8 when x = -3, find y when x = 3. |
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a) y = -8 | b) y = 8 | c) y = 72 | d) y = -72 | |

y varies inversely with x. If y = 9 when x = 1, find y when x = 3. |
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a) y = 3 | b) y = -3 | c) y = 27 | d) y = -27 | |

y varies inversely with x. If y = -4 when x = 5, find y when x = 3. |
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a) -20/3 | b) 20/3 | c) -12/5 | d) 12/5 | |

Tell whether x and y show direct variation, inverse variation, or neither: 8y = x |
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a) direct variation | b) inverse variation | c) neither | d) | |

Tell whether x and y show direct variation, inverse variation, or neither: xy = 12 |
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a) direct variation | b) inverse variation | c) neither | d) | |

Tell whether x and y show direct variation, inverse variation, or neither: y/x = 8 |
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a) direct variation | b) inverse variation | c) neither | d) | |

Tell whether x and y show direct variation, inverse variation, or neither: x + y = 6 |
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a) direct variation | b) inverse variation | c) neither | d) | |

Tell whether x and y show direct variation, inverse variation, or neither: y = x + 4 |
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a) direct variation | b) inverse variation | c) neither | d) | |

Tell whether x and y show direct variation, inverse variation, or neither: 4x = y |
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a) direct variation | b) inverse variation | c) neither | d) | |

z varies jointly with x and y. When x = 6 and y = -7, z = -3. Find z when x = -4 and y = 5. |
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a) z = -10/7 | b) z = 10/7 | c) z = 7/10 | d) z = -7/10 | |

Tell whether x and y show direct variation, inverse variation, or neither: y = 2/x |
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a) direct variation | b) inverse variation | c) neither | d) | |

Tell whether x and y show direct variation, inverse variation, or neither: xy = 1/5 |
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a) direct variation | b) inverse variation | c) neither | d) | |

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