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    Write an equation of the form y=mx+c for the line P0-P1 and for one perpendicular through P. You can then solve for their intersection, which will then allow you to calculate the distance.
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    (Original post by RogerOxon)
    Write an equation of the form y=mx+c for the line P0-P1 and for one perpendicular through P. You can then solve for their intersection, which will then allow you to calculate the distance.
    How do I calculate the equation for P (-500,48)?
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    Do you know how to calculate the gradient for a line perpendicular to another?
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    (Original post by RogerOxon)
    Do you know how to calculate the gradient for a line perpendicular to another?
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    The gradient of a line perpendicular to one with gradient m is -1/m
 
 
 
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