This math topic focuses on understanding the equation format of a circle, specifically identifying the meanings of variables in the standard circle equation \((x-h)^2 + (y-k)^2 = r^2\). The worksheet contains multiple-choice questions regarding the significance of variables 'k', 'r', and 'h', such as determining which coordinate of the circle's center or the circle's radius they represent.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.