Question

For each circle equation shown below, state the coordinates of its center and the length of its radius. (a) 2 216x y (b)

Answer 1

(a) center: (0, 0); radius: 4

(b) center: (8, -3); radius: 10

(c) center: (-2, -7); radius: 7

(d) center: (6, 0); radius: 1

(e) center: (0, 0); radius: 5

(f) center: (3, 8); radius: 8

Explanation:

In the figure attached, the complete question is shown.

Equation of a circle with center (h, k) and radius r:

(x - h)² + (y - k)² = r²