Question

Write the equation of a circle with a center at (6, 7) and a diameter of 4.

Answer 1

(x - 6)² + (y - 7)² = 4

Explanation:

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

Given center(h,k) = (6,7)

h = 6

k = 7

Dimeter = 4 --

radius, r =
`(4)/(2)` = 2

(x - h)² + (y - k)² = r²

(x - 6)² + (y - 7)² = 2²

(x - 6)² + (y - 7)² = 4