Find the standard form of the circle with center 1 2 and rad

Find the standard form of the circle with center (1, -2) and radius 4.

Solution

The center-radius form of the circle equation is in the format (x – h)² + (y – k)² = r², with the center being at the point (h, k) and the radius being \"r\".

Here given (h,k) = ( 1, -2) And radius , r= 4

( x - 1)² + ( y - (-2))² = (4)²

(x - 1)² + (y + 2)² = 16.

is the standard form of circle.