Asked by ladybug
find the center (h,k) and radius r of the circle and then find the intercepts, if any.
5x^2+30x+5y^2=0
5x^2+30x+5y^2=0
Answers
Answered by
Reiny
divide by 5
x^2 + 6x + y^2 = 0
complete the square for the x terms
x^2 + 6x + 9 + y^2 = 9
(x+3)^2 + y^2= 9
take it from there
x^2 + 6x + y^2 = 0
complete the square for the x terms
x^2 + 6x + 9 + y^2 = 9
(x+3)^2 + y^2= 9
take it from there
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