137k views
2 votes
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?-example-1
User Nitsram
by
6.7k points

2 Answers

6 votes

Answer:

The choose (A)

A- (x+3)²+(t+5)²=16

User Calpau
by
7.3k points
5 votes

Answer:

A (x + 3)^2 + ( y + 5 )^2 = 16

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

User Blake Pettersson
by
5.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.