Parallel lines: Quick Investigation

[b]Directions:[/b][br][br]1) Graph any line.(Use the two-dots tool)[br]2) Plot a point anywhere NOT ON THAT LINE.(Use the A tool)[br]3) Construct a line PARALLEL to the GIVEN LINE.(Use the parallel line tool. First click the point then click the line.)[br]4) Use the move tool at top left to move points.[br]5)Use the trash tool to delete if needed.[br]6)Use the undo icon on top right if needed.[br][br]Go to the questions below the applet. Please answer these.
Q.1
Use the slope tool to measure and display the slopes of both lines. What do you immediately notice?
Q.2
Select the [b]Move[/b] arrow now. Drag any one or more of the orange points of the first line around. Does the phenomenon you described in your response to (Q.1) above still hold true?
Q.3
In general, what can we conclude about any two non-vertical lines being parallel in the coordinate plane?
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