savannahhudson1 savannahhudson1
  • 31-01-2017
  • Mathematics
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If (x - h) = 4 and (y - k) = 3, what is the radius of the circle above?

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apologiabiology
apologiabiology apologiabiology
  • 31-01-2017
(x-h)²+(y-k)²=r² is the equation of a circle with radius of r


so if x-h=4 and y-k=3 then

4²+3²=r²
16+9=r²
25=r²
sqrt both sides
5=r
radius is 5 units
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