yusotori yusotori
  • 17-07-2019
  • Mathematics
contestada

What is the equation of a circle with center (2,-5) and radius 4?

Respuesta :

jimrgrant1 jimrgrant1
  • 17-07-2019

Answer:

(x - 2)² + (y + 5)² = 16

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (2, - 5) and r = 4, hence

(x - 2)² + (y - (- 5))² = 4², that is

(x - 2)² + (y + 5)² = 16 ← is the equation of the circle

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