Question

1. What is the center and radius of the circle?
(x-4)² + (x-7) ² - 49

Answer 1

Center at (4, 7) and radius is √49, or 7

Explanation:

Didn't you mean (x-4)² + (y-7) ² = 49?

Comparing (x-4)² + (y-7) ² = 49

to (x - h)^2 + (y - k)^2 = r^2, we see that the center is at (h, k) => (4, 7) and that the radius is √49, or 7.