Question

Ryan’s teacher asked him to graph circle E with equation (x – 5)2 + y2 = 25. Below is the graph he submitted. What, if anything, did Ryan do wrong when graphing this equation?

Answer 1

centre is at (5,0), not at (25,0)

Answer 2

(x – h)^2 + (y-r)^2 = r^2
from the equation in centre-radius form,
the centre is (h,k) and the radius = r

Answer 3

Ahhh, I see. Almost put -5.