Respuesta :

Completing the squares, the equation of the circle is and the graph is given at the end of the answer.

What is the equation of a circle?

The equation of a circle of center [tex](x_0, y_0)[/tex] and radius r is given by:

[tex](x - x_0)^2 + (y - y_0)^2 = r^2[/tex]

For this problem, the equation is:

x² + y² + 6x - 4y - 12 = 0.

We have to complete the squares to place the equation of the circle in standard format, hence:

x² + 6x + y² - 4y = 12.

(x + 3)² + (y - 2)² = 12 + 3² + 2²

(x + 3)² + (y - 2)² = 25.

Which means that we have a circle that:

  • Has a center at (-3, 2).
  • Has a radius of 5 units.

The graph is sketched at the end of this answer.

More can be learned about the equation of a circle at https://brainly.com/question/24307696

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