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grigory [225]
3 years ago
6

18. A circle in the standard (x,y) coordinate plane is

Mathematics
1 answer:
Lana71 [14]3 years ago
3 0

9514 1404 393

Answer:

  F

Step-by-step explanation:

If the circle is tangent to the x-axis at 4, the center lies on the line x=4.

If the circle is tangent to the y-axis at 4, the center lies on the line y=4.

If the center of the circle is (x, y) = (4, 4) and it is tangent to the axes, then the radius is 4.

The standard-form equation of the circle centered at (h, k) with radius r is ...

  (x -h)² +(y -k)² = r²

For the values (h, k) = (4, 4) and r = 4, the equation is ...

  (x -4)² +(y -4)² = 16 . . . . . . matches choice F

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