Question

1. Find the center and radius of the circle with equation (x + 2)^2 + (y + 10)^2 = 4

Center
Radius​

Answer 1

The center is the opposite of the numbers in the brackets. So, the centre would be:

(-2, -10)

The radius is the square root of what this is equal to, and the square root of 4 is 2.

So center = (-2, -10) and radius = 2