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12. What is the equation of a circle with center (6,-4) and radius 6?(x - 6)2 + (y + 4)2 = 6(x + 6)2 + (y - 4)2 = 36(x + 6)2 + (y - 4)2 = 6(x - 6)2 + (y + 4)2 = 36

12 What Is The Equation Of A Circle With Center 64 And Radius 6x 62 Y 42 6x 62 Y 42 36x 62 Y 42 6x 62 Y 42 36 class=

Sagot :

The equation of a circle with center (h, k) and radius r is given by the following expression:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

In this case, the center of the circle is located at (6, -4), and its radius equals 6, then by replacing 6 for h, -4 for k and 6 for r, we get:

[tex]\begin{gathered} (x-6)^2+(y-(-4))^2=6^2 \\ (x-6)^2+(y+4)^2=36 \end{gathered}[/tex]

Then, the last option is the correct answer: (x - 6)^2 + (y + 4)^2 = 36