Find an equation of the circle that has center (-1, 3) and passes through (1.

1)

(x + 1) ² + (y - 3) ² = 8

Step-by-step explanation:

radius (r) : √ (1 - (-1)) ² + (1 - 3) ² = √8 = 2√2

Formula for circle with center (h, k) : (x - h) ² + (y - k) ² = r²

(x + 1) ² + (y - 3) ² = 8