josh6272
josh6272 josh6272
  • 26-03-2020
  • Mathematics
contestada


What is the center of the circle represented by this equation?

(x – 7)2 + (y + 4)2 = 9

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 26-03-2020

Answer:

The center is (7,-4) and the radius is 3

Step-by-step explanation:

(x – 7)^2 + (y + 4)^2 = 9

The equation of a circle can be written as

(x – h)^2 + (y - k)^2 = r^2

where (h,k) is the center and r is the radius

Rewriting the original equation

(x – 7)^2 + (y -  - 4)^2 = 3^2

The center is (7,-4) and the radius is 3

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