If they stick the pony David wants, what is the equation of the circle that represents the ponies path? a) what will be the radius of the pony’s path?

b) Remember The equation whose center is not at the origin is
(x- h) ^2 + (y-v) ^2 = r^2 where (h, v) is the center of the circle.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870