joemensah253 joemensah253
  • 25-04-2020
  • Mathematics
contestada

circle.
x2 - 8x +y2 - 2y +1=0

Respuesta :

valleybritney
valleybritney valleybritney
  • 25-04-2020

Answer:

Center (4,1)

Radius r = 4

Step-by-step explanation:

Complete the square to fill in the standard circle equation:

  • [tex](x-h)^2+(y-k)^2=r^2[/tex] , (h,k) is the center, r is the radius

[tex](x^2-8x+16) + (y^2-2y+1) = 16[/tex]

Use formula: [tex]x^2+2ax+a^2=(x+a)^2[/tex]

therefore, [tex](x-4)^2+(y-1)^2=16[/tex]

(h,k) = (4,1)

r = 4

Answer Link
nmarrero09 nmarrero09
  • 25-04-2020

Answer:

r = 4

Step-by-step explanation:

Answer Link

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