Question

Can someone please help with this question.

Answer 1

Answer: d) (-1, 0); 2

Explanation:

The equation of a circle is: (x - h)² + (y - k)² = r²

• (h, k) is the center
• r is the radius

(x +1)² + y² = 4 can be rewritten as: (x - (-1))² + (y - 0)² = 2²

→ (h, k) = (-1, 0)

→ r = 2