View Single Post
Old Jul 25th, 2005, 7:47 PM   #5
EverLearning
Hobbyist Programmer
 
EverLearning's Avatar
 
Join Date: May 2005
Location: Indiana
Posts: 130
Rep Power: 4 EverLearning is on a distinguished road
It's called "solving" for y:

(x-a)^2 + (y-b)^2 = r^2
(y-b)^2 = r^2 - (x-a)^2
y-b = sqrt(r^2 - (x-a)^2)
y = sqrt(r^2 - (x-a)^2) + b

of course, you don't say what is given in the problem so I assume a, b, r are known.
__________________
got math? yumm...

"All men by nature desire to know" -Aristotle, Metaphysics
EverLearning is offline   Reply With Quote