Part a) Write the equation of the circle by completing the square.

Part b) What is the center and the radius of the circle?

x2 + 4x + y2 - 2y = 20

Question

Mathematics

Esteban Silva

1 December, 23:04

Part a) Write the equation of the circle by completing the square.

Part b) What is the center and the radius of the circle?

x2 + 4x + y2 - 2y = 20

+3

Answers (1)

Know the Answer?

Ray Shelton · Answer 1

Hello:

x² + 4x + y² - 2y = 20

x² + 4x+4-4 + y² - 2y+1-1 = 20

(x² + 4x+4) - 4 + (y² - 2y+1) - 1 = 20

(x+2) ² + (y-1) ² = 5²

the radius is : 5 the center: (-2,1)

Part a) Write the equation of the circle by completing the square.Part b) What is the center and the radius of the circle?x2 + 4x + y2 - 2y = 20

Part a) Write the equation of the circle by completing the square.

Part b) What is the center and the radius of the circle?

x2 + 4x + y2 - 2y = 20