math question

03052016, 03:52 PM
Post: #1




math question
or maths, if you are not in the US
I am trying to graph circles on my TI84 plus graphing calculator. I know that the formula for a circle is (xh)^2 + (yk)^2 = r^2 where the center of the circle is (h,k) and the radius is r, but to actually graph the circle I need two formulas (one for the upper part, one for the lower) in the form y1= and y2=, using variables x, h, k, and r. I have found several formulas on the Internet, but none give me the results that I would expect. 

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Messages In This Thread 
math question  Don Shepherd  03052016 03:52 PM
RE: math question  SlideRule  03052016, 04:11 PM
RE: math question  Manolo Sobrino  03052016, 04:57 PM
RE: math question  Don Shepherd  03052016, 05:46 PM
RE: math question  klesl  03072016, 08:38 AM
RE: math question  Don Shepherd  03072016, 09:08 PM

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