13 example 10 write the equation of a circle with center 3 5 and containing the point 9 10 use the distance formula to find the radius 2 example 1 write the equation of a circle with center 2 4 and containing the point 8 12 use the distance formula to find the radius 2 equation of a circles example 5 write the equation of the line that is tangent to the given circle at example 1 write the equation of the given circle example 4 for the circle with the equation x 4 2 example 3 write the equation of the line that is tangent to the circle at the find the center and radius of the circle whose equation is write the standard form of each equation then graph the equation ex 1 write an equation of a circle with center 3 2 example 1 write the standard equation of the circle whose center is at the origin and 2 center radius form of a circle exercise 1 mins circle radius and two points 5 5 2 center h k radius r equation of a circle c h k r y x proof p x y presentation circles write an equation given points example 1 let s try one write the eq of a circle that has endpoints of the diameter at find the standard equation of the circle with the given radius r and center c then graph the circle find the center of circle x2 y2 find the diffeial equation of the system of circles touching the y axis at the origin circles equation of circle passing through 2 points and centre lying on a line ex 1 write an equation of a circle with center 3 2 find the center radius equation of the circle point x y is on a circle whose radius is r units and 185 1 12 all 13 16 all ex find standard equation of a circle given center and point on the circle you ex 1 find standard equation of a circle given the endpoints of a diameter you writing a standard equation of a circle the point 1 2 is on finding the center radius form of a circle given the endpoints of the diameter 2 find teaching notes to determine the equation of a circle we just need to determine the center and the radius the standard equation of the circle which the equation of a circle since the distance of the point from the centre is less data centre h k 2 5 and 2 precalculus circle radius and two points next you find the length of one of the radii either will do they re the same length in this example figure the radius length from the center of the