[color=#1e84cc][b]WARM UP: [/b][/color][br][br]In the applet below, the [color=#9900ff][b]purple line[/b][/color] and the [color=#980000][b]brown line[/b][/color] are said to be [b]perpendicular lines[/b]. [br][br]Move the white points around a bit, then answer the question that appears below the applet.
[b]What does it mean for two lines to be perpendicular? [br][/b][br][color=#0000ff]Without looking up the definition on another tab in your browser, write a sentence definition in the response box below. [br][br][i]Be specific in your description! [/i][br][/color]