Question

Write the equation of a circle that has a center of (-4, 2) and has a radius of 7.​

Answer 1

• (x + 4)² + (y - 2)² = 49

Explanation:

• The center is (h, k) = (-4, 2) ⇒ h = -4, k = 2
• The radius r = 7

The equation is:

• (x - h)² + (y - k)² = r²
• (x - (-4))² + (y - 2)² = 7² ⇒ (x + 4)² + (y - 2)² = 49