Graphing 12 - Slope between two points
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Lesson Description:
Continuation of the ideas from Graphing 11: More examples showing how to find the slope of a line passing through two points by using the algebraic formula for slope. This is part 12 of a series of videos about graphing lines.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you use the formula m = (y2 - y1)/(x2 - x1) to find slope between two points?
- How do you find the slope of the line containing the pair of points (8, -5) and (-3, -2)?
- What is an easy way to make sure that you are putting values in the correct spots when using the slope formula?
- What is the slope between the points (5, -7) and (5, 2)?
- What happens if you get an undefined slope for a line?
- How do you find the slope between the points (18, -11) and (40, 5)?
- How do you know whether to expect a positive or negative slope when you find the slope between two points?
- What is the slope between the points (-1, -3) and (1, 5)?
- How do you find the slope between two points without graphing them?
- How do you find the slope of the line containing the pair of points (-4, -3) and (2, -3)?
- What happens if you get a slope of 0 for a line?
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Staff Review
This video continues from the previous video and does many more example problems of finding slope between two points. All steps are explained and a really cool technique is shown in which you place y / x for both pairs to make sure they line up correctly in the formula. -
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