y varies directly as x, and y = - 72

when x = 6, solve for y when x = 3

*varies directly as* means

y = kx where k is a constant

xk = y

-72 = 6k

6k | |

6 |

= |

-72 |

6 |

= |

-72 |

6 |

y = -12x

y = -12(3)

y = **-36**

y = **-36**

Free Variation Equations Calculator - This calculator solves the following direct variation equations and inverse variation equations below:

* y varies directly as x

* y varies inversely as x

* y varies directly as the square of x

* y varies directly as the cube of x

* y varies directly as the square root of x

* y varies inversely as the square of x

* y varies inversely as the cube of x

* y varies inversely as the square root of x

This calculator has 3 inputs.

* y varies directly as x

* y varies inversely as x

* y varies directly as the square of x

* y varies directly as the cube of x

* y varies directly as the square root of x

* y varies inversely as the square of x

* y varies inversely as the cube of x

* y varies inversely as the square root of x

This calculator has 3 inputs.

y = kx

y = k/x

y = kx^2

y = k/x^2

y = kx^3

y = k/x^3

For more math formulas, check out our Formula Dossier

y = k/x

y = kx^2

y = k/x^2

y = kx^3

y = k/x^3

For more math formulas, check out our Formula Dossier

- constant of proportionality
- the ratio that relates two given values in what is known as a proportional relationship

k - inverse
- opposite or contrary in position
- variation equations
- Equations with variables dependent on another variable

Add This Calculator To Your Website