which graph represents a circle with equation x2 + y2 = 9
Question
Answer:
The basic form of the equation of a circle is: x^2+y^2=r^2
where r^2 is the radius squared.
Looking at your equation, x^2+y^2=9, the radius is 3 (sqrt of 9 is 3)
Therefore, the graph B would be correct since the radius of the circle at all points is 3.
Hope I helped :)
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11 months ago
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