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4.
Find the center and radius of the circle with the given equation.
(x + 7)^2 + (y – 5)^2 = 16
A) Center(7,5); r = 4
B) Center( -7,5); r = 4
C) Center(7,5); r = 16
D) Center(-7,5); r = 16

4 Find the center and radius of the circle with the given equation x 72 y 52 16 A Center75 r 4 B Center 75 r 4 C Center75 r 16 D Center75 r 16 class=

Respuesta :

Answer:

B

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

(x + 7)² + (y - 5)² = 16 ← is in standard form

with centre = (- 7, 5 ) and r = [tex]\sqrt{16}[/tex] = 4 → B

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