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# Math-The Circle

### Flash Cards for Circle Math Problems

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

A circle's center is found at (3,4) and its radius is 2. Use this information and write the equation in standard form. | (x-3)^2+(y-4)^2=4 |

A circle's center is (0,-3) and its radius is 4. With the given information, write the equation of the circle. | (x-0)^2+(y+3)^2=16 OR x^2+(y+3)^2=16 |

The equation for a circle is: (x-2)^2+(y+3)^2=36 Find its center and radius. | Center=(2,-3) Radius=6 |

The equation for a circle is: x^2+y^2+4y=0 Find its center and radius. | Center=(0,-2) Radius=2 |

Graph this equation: (x-3)^2+y^2=49 | Center=(3,0) Radius=7 points around center=(3,7),(3,-7),(-4,0),(10,0) |

Graph this equation: x^2+y^2+2x-4y=11 | Center=(-1,2) Radius=4 Points around center:(3,2),(-1,-2),(-5,2),(-1,6) |

Find the Center and the Radius of the circle, and then graph the circle. (x-2)^2+(y+6)^2=9 | Center=(2,-6) Radius=3 Points around center=(2,-9),(2,-3),(-1,-6),(5,-6) |

A circle's center is (4,5) and its radius is √11. Use this information to write the equation of the circle. | (x-4)^2+(y-5)^2=11 |

The equation for a circle is x^2+(y+8)^2=18 Find the Center and the Radius. | Center=(0,-8) Radius=√18 |

A circle's center is (-3,-7) and its radius is 9. Use this information to write the equation for this circle. | (x+3)^2+(y+7)^2=81 |

Created by:
rachellauren8