am6288p146je
am6288p146je am6288p146je
  • 04-01-2018
  • Mathematics
contestada

Complete the square in each equation below. Write an equation in standard form for each circle. Then, give its center and its radius

Complete the square in each equation below Write an equation in standard form for each circle Then give its center and its radius class=

Respuesta :

shawncou7110
shawncou7110 shawncou7110
  • 16-01-2018
Q1: x² + (y - 3)² = 4
Steps:
x² + y² - 6y = -5
x² + y² - 6y + 9 = 4
x² + (y² - 6y + 9) = 4
x² + (y - 3)² = 4
Center: (0, 3)
Radius: 2
Q1: x² + (y + 2)² = 8
Steps: 
x² + y² + 4y = 12
x² + y² + 4y + 4 = 8
x² + (y² + 4y + 4) = 8
x² + (y + 2) = 8
Center: (0, -2)
Radius: 2√2
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