Question

(x - 7)2 + (y + 5)2 = 4
what’s the center and radius

Answer 1

(7, - 5 ) and r = 2

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

(x - 7)² + (y + 5)² = 4 ← is in standard form

with centre = (h, k ) = (7, - 5 ) and r =
`√(4)` = 2