Equation & Graph of a Circle
The following applet was designed to help you see the relationship between the equation of a circle and its graph. [br]Adjust the sliders "h", "k", and "r" (one at at time), and observe what happens to the graph and equation after altering each one. [br]Answer the questions below.
Questions:[br][br]1) What does the parameter "[color=#0a971e]h[/color]" in the equation of a circle tell you about the [i]graph of the circle itself[/i]? [br]2) What does the parameter "[color=#1551b5]k[/color]" in the equation of a circle tell you about the [i]graph of the circle itself[/i]? [br]3) What does the parameter "[color=#c51414]r[/color]" in the equation of a circle tell you about the [i]graph of the circle itself[/i]? [br]4) How is the value of "[color=#c51414]r[/color]" made evident in the equation?