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# Parabolas

### Determing the Equation of parabola

Question | Answer |
---|---|

y=a(x-h)²+k | vertex form |

y=a(x-h)²+k vertex | (h,k) |

y=a(x-h)²+k axis of symmetry | x=h |

ax²+bx+c | standard form |

ax²+bx+c axis of symmetry | -b/2a |

ax²+bx+c y-intercept | c |

a(x-p)(x-q) | intercept form |

a(x-p)(x-q) x-intercepts | (p,0) (q,0) |

a(x-p)(x-q) axis of symmetry is halfway between _________ | p and q |

a(x-p)(x-q) x coordinate of vertex | p+q/2 |

ax²+bx+c x coordinate of vertex | -b/2a |

Form of Equation y=... | y=a(x-h)^2+k |

Form of Equation x=... | x=a(y-k)^2+h |

opening up, y=... | a>0 |

opening down, y=... | a<0 |

opening to the right x=... | a>0 |

opening to the left x=... | a<0 |

Created by:
lesterstoffels