What is the equation of a circle with center (-3, -5) and radius 4?
![What is the equation of a circle with center 3 5 and radius 4 class=](https://us-static.z-dn.net/files/dd4/b60def8b9d1f140272a4ecdbf94b6e65.png)
Answer:
A (x + 3)^2 + ( y + 5 )^2 = 16
Step-by-step explanation:
The formula for equation of a circle is (x - h ) ^2 + ( y - k ) ^2 = r ^2
( h , k ) represent the coordinates
r represents the radius
Plug in the numbers ( x - (-3) ) ^2 + ( y - (-5) ) ^2 = 4 ^2
2 negatives make a positive
So the equation would be (x + 3)^2 + ( y + 5 )^2 = 16
You also need to make sure you square the radius