Question

If the end points of the diameter of a circle are (9,4) and (5,2) what is the standard form equation of the circle

Answer 1

(x - 7)² + (y - 3)² = 5

Explanation:

The center (h , k) is the midpoint of two end points of diameter

h = (9 + 5) / 2 = 7

k = (4 + 2) / 2 = 3

Equation of circle: (x - h)² + (y - k)² = r²

r = (√(9 - 5)² + (4 - 2)²) / 2 = √5

Equation: (x - 7)² + (y - 3)² = 5