Parallel Lines and Slope: Quick Investigation

DIRECTIONS:
In the applet below, please do the following: [br][br]1) Use the PARALLEL LINE [icon]/images/ggb/toolbar/mode_parallel.png[/icon] tool to construct a line through [i]C[/i] parallel to line [i]f[/i]. [br]2) Use the SLOPE [icon]/images/ggb/toolbar/mode_slope.png[/icon] tool to measure and display the slopes of both lines. [br][br]Please answer the question that appears below the applet.
QUESTION
Move points A, B, and C around. What do you notice about the slopes of these parallel lines? Describe.
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Information: Parallel Lines and Slope: Quick Investigation