SOLUTION: PLEASE HELP a circle has the equation x^2+y^2-x+6y+9=0. graph the circle using the center (h,k) and radius r. find the intercepts, if any, of the graph

Algebra ->  Graphs -> SOLUTION: PLEASE HELP a circle has the equation x^2+y^2-x+6y+9=0. graph the circle using the center (h,k) and radius r. find the intercepts, if any, of the graph      Log On


   

Question 838758: PLEASE HELP
a circle has the equation x^2+y^2-x+6y+9=0. graph the circle using the center (h,k) and radius r. find the intercepts, if any, of the graph
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28x-h%29%5E2%2B%28y-k%29%5E2=R%5E2
Complete the square in x and y.
x%5E2%2By%5E2-x%2B6y%2B9=0
x%5E2-x%2By%5E2%2B6y=-9
%28x%5E2-x%2B1%2F4%29%2B%28y%5E2%2B6y%2B9%29=1%2F4%2B9-9
%28x-1%2F2%29%5E2%2B%28y%2B3%29%5E2=1%2F4
h=1%2F2
k=-3
R=1%2F2
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.
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drawing%28300%2C300%2C-2%2C4%2C-4%2C2%2C%0D%0Agrid%281%29%2Ccircle%28.5%2C-3%2C.5%29%29