Write the equation of the circle in general form. Show your work.

Answer:
The center: ( -1, 1 ) The radius: 3
Step-by-step explanation:
(x + 1)^2 + ( y - 1)^2 = 9
x^2 + 2x + 1 + y^2 - 2y + 1 = 9
x^2 + y^2 + 2x - 2y - 7 = 0
The equation of the circle in the figure is [tex](x + 1)^2 + (y - 1)^2= 36[/tex]
From the figure, we have the following parameters:
Center, (a,b) = (-1,1)
Radius, r = 3
The equation of the circle is then calculated using:
[tex](x - a)^2 + (y - b)^2= r^2[/tex]
So, we have:
[tex](x + 1)^2 + (y - 1)^2= 6^2[/tex]
Evaluate
[tex](x + 1)^2 + (y - 1)^2= 36[/tex]
Hence, the equation of the circle in the figure is [tex](x + 1)^2 + (y - 1)^2= 36[/tex]
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