allisonthetwin5404 allisonthetwin5404
  • 25-05-2020
  • Mathematics
contestada

Write the equation of a circle whose center is at (3,-2) and has a radius of 11.
Show your work!

Respuesta :

joaobezerra joaobezerra
  • 26-05-2020

Answer:

[tex](x - 3)^{2} + (y + 2)^{2} = 121[/tex]

Step-by-step explanation:

The equation of a circle has the following format:

[tex](x - x_{0})^{2} + (y - y_{0})^{2} = r^{2}[/tex]

In which r is the radius and the centre is the point [tex](x_{0}, y_{0})[/tex]

In this question:

Center at (3,-2), so [tex]x_{0} = 3, y_{0} = -2[/tex]

Radius 11, so [tex]r = 11[/tex]

Then

[tex](x - 3)^{2} + (y - (-2))^{2} = 11^{2}[/tex]

[tex](x - 3)^{2} + (y + 2)^{2} = 121[/tex]

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