Identify the center of the circle whose equation is (x - 2)2 + (y + 8)2 = 16.
Solution:
A circle is defined as the locus of a moving point on a plane such that its distance from a fixed point on the plane remains constant or fixed.
That fixed point is called the center of the circle.
Given, the equation of the circle is (x - 2)2 + (y + 8)2 = 16. ----------------- (1)
We have to find the center of the circle.
The standard form of the equation of a circle is given by
(x - a)2 + (y - b)2 = r2 -------------------------- (2)
Where, a and b are the coordinates of the centre
r is the radius
Comparing (1) and (2)
a = 2
b = -8
r = 4
Therefore, the center of the circle is (2, -8).
Identify the center of the circle whose equation is (x - 2)2 + (y + 8)2 = 16.
Summary:
The center of the circle whose equation is (x - 2)2 + (y + 8)2 = 16 is (2, -8).
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