Question: If the coordinates of the center of a circle are (2, 3) and the radius is 4, what is the equation of the circle?

Options:

1. (x - 2)² + (y - 3)² = 16
2. (x + 2)² + (y + 3)² = 16
3. (x - 2)² + (y + 3)² = 16
4. (x + 2)² + (y - 3)² = 16

Correct Answer: (x - 2)² + (y - 3)² = 16

Solution:

The standard form of a circle\'s equation is (x - h)² + (y - k)² = r², where (h, k) is the center and r is the radius.