To test for parallel lines, we use the equation for slope. If the slopes of the two lines are the same, then the lines are parallel. If the slopes of the two lines are not the same, then the lines are not parallel. Then we can test for intersecting, and then skew.
To test for parallel, take the coefficient values on our parameters, which are also called our direction numbers.
We can test for intersecting lines by solving a system of simultaneous equations.
We've ruled out that they're not parallel or intersecting lines, so we know that they must be skewed.
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This video tutorial works through math problems/equations that address topics in Calculus 3, Partial Derivatives. This specific tutorial addresses Parallel, intersecting, skew and perpendicular lines.
Length: 11 minutes
Copyright date: ©2013
Prices include public performance rights.
Not available to Home Video, Dealer and Publisher customers.
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