If (9, 1) and (1,9) are the endpoints of a diameter of a circle, what is the equation of the circle?

(x - 5)² + (y - 5)² = 32

Step-by-step explanation:

Centre = midpoint of the diameter

(h,k) = (9+1)/2, (9+1)/2 = (5,5)

Radius² = [(9-5)² + ((1-5)²]

= 16 + 16 = 32

Equation:

(x - 5)² + (y - 5)² = 32

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

where is the figure