2 years ago

Two circles are concentric if they have the same center.

1 answer:

Tpy6a [65]2 years ago

3 0

9514 1404 393

Answer:

(b) (x – 4)^2 + (y – 6)^2 = 16

Step-by-step explanation:

The equation for a circle with center (h, k) and radius r is ...

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

You want the equation for a circle with center (4, 6) and radius 4. That equation is ...

(x -4)^2 +(y -6)^2 = 16

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