chalkerjalis1689 chalkerjalis1689
  • 23-06-2018
  • Mathematics
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What is the equation of a circle centered at (-3,1) with radius 7?

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Luv2Teach
Luv2Teach Luv2Teach
  • 23-06-2018
The standard form of a circle is [tex](x-h)^2+(y-k)^2=r^2[/tex], where h and k are the coordinates of the center and r is the radius.  We will fill in accordingly with what we have. [tex](x-(-3))^2+(y-1)^2=7^2[/tex].  Simplifying a bit we have [tex](x+3)^2+(y-1)^2=49[/tex].  That's the equation for your circle.
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