1. anonymous

write an equation of each circle described:

2. anonymous

simply get the radius using distance formula and then u have centre and radius u'll get eqn of circle

3. anonymous

So the radius is $\sqrt{10}$

4. anonymous

@Mrfootballman97 Use this formula: $(x-a)^{2} + (y-b)^{2} = r ^{2}$

5. goformit100

(x−a)2+(y−b)2=r2

6. anonymous

no duh it $\sqrt{26}$

7. anonymous

so the final answer is? Im a little confused right now. If someone just tells me the answer ill be able to see how you did it.

8. anonymous

hey that not to find radius use$\sqrt{(x_{1}-x_{2})^2+(y_{1}-y_{2})^2}$

9. anonymous

@Mrfootballman97 use above formula to get radius and then equation of circle answer would be $x^2+(y-4)^2=26$

10. anonymous

thank you!