Use the slider to adjust the radius between 1 and 6. | |

Move the cursor over the picture to start the animation. | |

Move the cursor over the picture to start the animation. | |

The level curves of f(x,y)=x and the parabola ^{2}+y^{2}g(x,y)=y.
^{2}-x-9/2=0 | |

The graph of f(x,y)=x, where ^{2}+y^{2}x and y are restricted to the parabola g(x,y)=y below.
^{2}-x-9/2=0 |