Answer:
(x+5)² + (y+5)² = 18
Explanation:
Since the outline of the circle intersects with the point (-8,2), you can substitute to find the equation of the circle in the form (x-h)² + (y-k)² = r². First the center of the circle is given in the form (h,k). So (-5, -5) → (x – (-5))² + (y – (-5))² = r² → (x + 5)² + (y + 5)² = r².
Then to find r², substitute the given point with x and y.
((-8) + 5)² + ((-2) + 5)² = r²
(-3)² + (3)² = r²
18 = r²
r² = 18.