Question

What is the equation of a circle with a center (-8,3) and radius 8?

Answer 1

Answer:

(x + 8)² + (y - 3)² = 64

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (- 8, 3) and r = 8, hence

(x - (- 8))² + (y - 3)² = 8²

(x + 8)² + (y - 3)² = 64 ← equation of circle