Slope+of+a+line

1st video-What is slope? media type="file" key="What_is_Slope_.mov" align="left" width="300" height="300"

2nd video-Finding the Slope media type="file" key="Finding_Slope_Given_the_Coordinates_of_Two_Points_on_a_Line-1.mov" width="300" height="300"

3rd Video-Different Slopes media type="file" key="Negative__Positive__Zero__and_Undefined_Slopes-1.mov" width="300" height="300"