week 6 exercise - Divide the difference in y by the...

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With the equations for the line in terms of: y = mx + c Two lines are parallel if their m values are the same Two lines are perpendicular if their m values multiply to make -1 This means you would have to use the points to find the equation of the line then figure out if they're parallel/perpendicular from there. To do this - find the difference in x and y of the two co-ordinates for each line.
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Unformatted text preview: Divide the difference in y by the difference in x The answer is the gradient of the line - the m value in the equation y = mx + c Once you've got the gradient, you can then check to see if the lines are parallel/perpendicular with the rules above....
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