quesitofrescito quesitofrescito
  • 26-04-2024
  • Mathematics
contestada

What are the coordinates of the center of a circle
whose equation is x² + y² - 16x+6y+53 = 0?
1) (-8,-3)
2) (-8,3)
3) (8,-3)
4) (8,3)

Respuesta :

GinnyAnswer
GinnyAnswer GinnyAnswer
  • 26-04-2024
The given equation of the circle is x² + y² - 16x + 6y + 53 = 0. To find the center of the circle, we need to rewrite the equation in the standard form (x - h)² + (y - k)² = r², where (h, k) represents the center of the circle. Completing the square for the given equation: x² - 16x + y² + 6y = -53 (x² - 16x + 64) + (y² + 6y + 9) = -53 + 64 + 9 (x - 8)² + (y + 3)² = 20 Comparing this with the standard form, we see that the center of the circle is (8, -3). Therefore, the correct answer is: 3) (8, -3)
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