What is the equation of a circle with center (1, -4) and radius 2?A.B.C.D.
Question
What is the equation of a circle with center (1, -4) and radius 2?A.B.C.D.
Solution
The equation of a circle in the coordinate plane with center (h, k) and radius r is given by the formula:
(x - h)² + (y - k)² = r²
Given that the center of the circle is (1, -4) and the radius is 2, we can substitute these values into the formula to get the equation of the circle:
(x - 1)² + (y - (-4))² = 2²
Simplifying this gives:
(x - 1)² + (y + 4)² = 4
So, the equation of the circle with center (1, -4) and radius 2 is (x - 1)² + (y + 4)² = 4.
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