What is the radius of the circle given by the equation below?
1 answer:
Answer:
A. 3
Step-by-step explanation:
Hello
X^2 + 8X + (8/2)^2 + Y^2 + 14Y + (14/2)^2 = (8/2)^2 + (14/2)^2-56
(X+4)^2 + (Y+7)^2 = 16 + 49 - 56
(X+4)^2 + (Y+7)^2 = 9
Then
The radius for that circle is 3
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