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On a coordinate plane, the center of circle P is at the point (2,15). Point M is located on the circle at (7,3). Which equation describes circle P?
a. (x+2)^2+(y+15)^2=13
b. (x-2)^2+(y-15)^2=13
c. (x+2)^2+(y+15)^2=169
d. (x-2)^2+(y-15)^2=169​

Q&A Education