Asked by Alg
Find center and radius of circle (x-9)^2+(y+1)^2=49
Answers
Answered by
Anonymous
Equation of circle:
(x-a)^2+(y-b)^2=R^2
a-Distance between center and y axis
b-Distance between center and x axis
In this case:
a=9
b=-1 Becouse [y-(-1)]=y+1
R=7
(x-a)^2+(y-b)^2=R^2
a-Distance between center and y axis
b-Distance between center and x axis
In this case:
a=9
b=-1 Becouse [y-(-1)]=y+1
R=7
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