Question

Write the equations of the circle with center at -1,5 that passes through the point 2,9​

Answer 1

`d = \sqrt{ {(x2 - x1)}^(2) + {(y2 - y1)}^(2) } \\ d = \sqrt{( {2 - ( -1))}^(2) + {(9 - 5)}^(2) } \\ d = \sqrt{ {3}^(2) + {4}^(2) } \\ d = √(9 + 16) \\ d = √(25) = 5 \: answer`