briannaml briannaml
  • 01-05-2018
  • Mathematics
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PLZ HELP ASAP FEATURES OF A CRICLE FROM AN EXPANDED EQUATION

PLZ HELP ASAP FEATURES OF A CRICLE FROM AN EXPANDED EQUATION class=

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11beehshahbaz 11beehshahbaz
  • 01-05-2018
First we need to convert the given equation to standard form.

[tex] x^{2} + y^{2} -2y-99=0 \\ \\ x^{2} + y^{2}-2(y)(1)=99 \\ \\ x^{2} + y^{2}-2(y)(1)+1=99+1 \\ \\ x^{2} + (y-1)^{2}=100 [/tex]

Comparing this equation to the standard equation of circle, we can write:

The center of the circle is (0, 1) and the radius of the given circle is 10
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