Question

Write an equation of a circle whose center is (- 3, 2) and whose diameter is 10

Answer 1

(x + 3)^2 + (y - 2)^2 = 25.

Explanation:

The radius = 1/2 diameter = 5

(x - a)^2 + (y - b)^2 = r^2

Here a = -3) b = 2 and r = 5 so we have:

(x - -3)^2 + (y - 2)^2 = 5^2

(x + 3)^2 + (y - 2)^2 = 25

Answer 2

Explanation: