A circle is centered at (2,-5) and has radius 3. Write its equation in standard form.
A)
(x + 2)2 + (y - 5)2 = 3
B)
(x - 2)2 + (y + 5)2 = 3
(x + 2)2 + (y - 5)2 = 9
(x - 2)² + (y + 5)² = 9

Respuesta :

Answer:

Option (D) is correct

[tex](x-2)^{2} +(y+5)^{2} = 9[/tex]

Step-by-step explanation:

A circle has (a , b ) are the coordinates of the centre and [tex]r = radius[/tex] .

Given.

A circle is centered at (2,-5) and has radius 3

Let [tex]a=2[/tex] and [tex]b=-5[/tex] and [tex]r=3[/tex]

The standard form of the circle is.

[tex](x-a)^{2} +(y-b)^{2} = r^{2}[/tex]------(1)

Put a, b and r value in equation  1.

[tex](x-2)^{2} +(y-(-5))^{2}= 3^{2}[/tex]

[tex](x-2)^{2} +(y+5)^{2} = 9[/tex]

So. the standard form of equation is.

[tex](x-2)^{2} +(y+5)^{2}= 9[/tex]