trinitycoleman1128 trinitycoleman1128
  • 04-03-2020
  • Mathematics
contestada

What is the equation of a circle with center (2,-8) and radius 9?

Respuesta :

kennedyymarigny5 kennedyymarigny5
  • 04-03-2020

Answer:

9^2= (x+2)^2+(y+8)^2

Step-by-step explanation:

The equation is r^2=(x+h)^2+(y-k)^2

Answer Link
bt531987
bt531987 bt531987
  • 04-03-2020

Answer:

x2+y2-4x+16y-13

Step-by-step explanation:

center (h,k)=2,-8

radius(r)=9

we know

(x-h)2+(y-k)2=r2

now insert above given information

(x-2)2+(y+8)2=9×9

Answer Link

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