At the carnival the ratio of rides and games was 9: 8

Ways to write a ratio:

For every 9 carnival rides there are 8 games

9/8

9:8

9 to 8 (comparing)

9 out of 8 (total)

X^2 - 4x +(4/2^2) + y^2 + 8y + (8/2^2) = -4 + (4/2^2) + (8/2^2)(x + 2)^2 + (y + 4)^2 = -4 + 4 + 16your center is (-2, -4) and the radius is the sqrt of -4 + 4 + 16 which is 4