125k views
5 votes
18. Find the equation of the circle with center (5, -3) and radius of 3. Show work.

18. Find the equation of the circle with center (5, -3) and radius of 3. Show work-example-1

1 Answer

2 votes

Answer:

(x - 5)² + (y + 3)² = 9

Explanation:

The standard equation of a circle with center (a, b) and radius r is given by

(x - a)² + (y-b)² = r²

Here the center is (5, -3) and r = 3

Substituting values for a = 5, b = -3 and r = 3

(x - 5)² + (y-(-3))² = 3²

(x - 5)² + (y + 3)² = 9

It is OK to leave it in this form without expanding

User Eray Diler
by
8.0k points