We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.

+0

# Geomtry question

+1
266
2

A circle is centered at (−8, −13)  and has a radius of 13.

What is the equation of the circle?

Enter the equation in the box using lower case variables x and y.

May 23, 2018

### Best Answer

#1
+3

Hello lysxsa!

The standard equation for a circle with center (a,b) and radius of c is:

\((x-a)^2+(y-b)^2=r^2\)

Using this, we can create our equation necessary to answer the question.

Since we already know the center and the radius, we can just plug in our values.

\((x+8)^2+(y+13)^2=13^2=169\)

I hope this helped,

Gavin

May 23, 2018

### 2+0 Answers

#1
+3
Best Answer

Hello lysxsa!

The standard equation for a circle with center (a,b) and radius of c is:

\((x-a)^2+(y-b)^2=r^2\)

Using this, we can create our equation necessary to answer the question.

Since we already know the center and the radius, we can just plug in our values.

\((x+8)^2+(y+13)^2=13^2=169\)

I hope this helped,

Gavin

GYanggg May 23, 2018
#2
+1

Thank you!

lysxsa  May 23, 2018