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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
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2 Answers

6 votes

Answer:

The choose (A)

A- (x+3)²+(t+5)²=16

User Calpau
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4.8k 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
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3.7k points