Suppose a classmate missed the lessons on completing the square to find the center and radius of a circles. Explain the process to them. one sentence
3 answers
To complete the square to find the center and radius of a circle, first rewrite the equation in standard form, then add and subtract half the coefficient of the linear term squared to both sides to complete the square and find the center, and finally take the square root of the constant term on the other side of the equation to find the radius.
shorter
To find the center and radius of a circle using completing the square, rewrite the equation in standard form, and then use the formula x = -b/2a to find the center (h, k) and the square root of the constant term to find the radius.