Write the equation of the circle. Assume the radius is a whole number.
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Question

Quizplus · Accepted Answer

The equation of a circle is of the form (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center of the circle and r is its radius. Since the radius is a whole number, we can simplify the given options by checking if they satisfy this form. If we convert the given option C to this form, we get (x-1bc8)^2 + (y-b851)^2 = da1e^2. Therefore, option C is the correct choice. The last five digits of the equation represent the center of the circle, which is (b851,13d259). The first digit of the fifth group of digits represents the radius, which is 1. Therefore, the equation of the circle is (x-b851)^2 + (y-13d259)^2 = 1^2. Simplifying this, we get (x-b851)^2 + (y-841625)^2 = 1. Comparing this equation to the answer choices, we see that choice C matches the equation.

Write the Equation of the Circle