Question

This circle is centered at the origin, and the length of its radius is 4. What the equation of the circle? 150 ė O A.2.1 4 O B. (x-4)² + (x-4)² = 16 O C. x² + y² = 4² O D. x² + y² = 4​

Answer 1

C

Explanation:

The formula for the equation of a circle is
`(x-a)^2+(y-b)^2=r^2`.

Since the center of this circle is (0,0) and the radius is 4, the equation will be
`x^2+y^2=4^2`

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