*a*(*x*-*x*_{0})^{2 }+ *b*(*y*-*y*_{0})^{2 }= *c*,

*a* *x*^{2}+ *b* *y*^{2}+ *c* *x*+ *d* *y*+ *e* = 0,

This online exercise can either plot an ellipse and ask you to recognize its equation among a list to choose from, or give an equation and ask you to recognize the plotted ellipse among a list to choose from.

Other exercises on: Graphic choice ellipse curves

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