blueme078
A circle has its center at (2, 5) and a radius of 4 units. What is the equation of the circle?



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moongazer
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\[(xh)^2 + (yk)^2 = r^2 \]
if c(h,k)

moongazer
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then transfer to the Gen. Form: \[Ax^2 + By^2 + Cx +Dy +E = 0\]

moongazer
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just substitute the values

moongazer
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then solve :)

blueme078
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Well these are the choices, can you help solve it

matricked
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first option