Question Detail
Question
If the equation of the circle is x² + y² - 4x + 2y + 3 = 0, what is the value of g and f?
Correct Answer
Option B is the correct answer.
Detailed Explanation
In the general form x² + y² + 2gx + 2fy + c = 0, comparing with x² + y² - 4x + 2y + 3 = 0 gives 2g = -4, so g = -2; and 2f = 2, so f = 1.
Hint
The notes indicate answer B.