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What is the radius and center for (x - 2)2 + y2 16? 0000 A. r = 16; center is (2,0) B. r = 4; center is (-2,0) C. r = 16; center is (-2,0) D. r = 4; center is (2,0)​

Respuesta :

mhanifa

Answer:

  • D. r = 4; center is (2, 0)

Step-by-step explanation:

Equation of a circle:

  • (x - h)² + (y - k)² = r², where (h, k) is the center and r is the radius

Given equation:

  • (x - 2)² + y² = 16

Rewrite as:

  • (x - 2)² + (y - 0)² = 4²

The center is (2, 0)

The radius is r = 4

Correct choice is D

MisterBrainly

General equation

  • (x-h)²+(y-k)²=r²

Where centre is (h,k)

radius is r

  • (x-2)²+(y-0)²=4²

Radius=4

centre (2,0)