Use completing the

square to identify the

center and radius of the

following circle

x2 + y2 + 2x - 10y - 23

Question

Mathematics

Quintin Griffith

15 November, 22:14

Use completing the

square to identify the

center and radius of the

following circle

x2 + y2 + 2x - 10y - 23

+1

Answers (1)

Know the Answer?

Sharon · Answer 1

center: (-1, 5)

radius: 7

Step-by-step explanation:

circle: (x - h) ² + (y - k) ² = r², with the center at (h, k) and the radius "r"

x² + y² + 2x - 10y - 23 = (x + 1) ² + (y - 5) ² - 49 = 0

(x + 1) ² + (y - 5) ² = 49 = 7²

center: (h, k) (-1, 5)

radius: 7

Use completing thesquare to identify thecenter and radius of thefollowing circlex2 + y2 + 2x - 10y - 23

Use completing the

square to identify the

center and radius of the

following circle

x2 + y2 + 2x - 10y - 23