A circle has a radius of 7/4 units and is centered at

(-2.5,-4.4)

Are you asking for the expression?

If so, you plug into the format (x - h) ² + (y - k) ² = r² where (h, k) is the center and r is the radius.

(x + 2.5) ² + (y + 4.4) ² = (7/4) ²

Simplify to get your equation and answer:

(x + 2.5) ² + (y + 4.4) ² = 49/16