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dolphi86 [110]
3 years ago
7

A circle has its center at (1, 4) and a radius of 2 units. What is the equation of the circle? (1 point) (x + 2)2 + (y + 4)2 = 2

(x − 1)2 + (y − 4)2 = 4 (x + 1)2 + (y − 4)2 = 4 (x − 1)2 + (y − 4)2 = 2
Mathematics
2 answers:
Fed [463]3 years ago
8 0

Answer:

The answer is the second option

(x-1)^{2}+(y-4)^{2}= 4

Step-by-step explanation:

The general equation of a circle is:

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

in this equation (h,k) is the center of the circle and r is the radius, so if the center is in (1,4) and the radius is 2, the values of the constants are:

h = 1

k = 4

r = 2

And the formula for this circle is:

(x-1)^{2}+(y-4)^{2}= 2^{2}

(x-1)^{2}+(y-4)^{2}= 4

yawa3891 [41]3 years ago
5 0

Answer:

3rd one. The general form of a circle is set equal to the radius squared. So right side is 4 then plug in values until true.

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