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# Vectrs 4Q watch

1. Sup
2. 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.
3. (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)?
4. Do you know how to calculate the gradient for a line perpendicular to another?
5. (Original post by RogerOxon)
Do you know how to calculate the gradient for a line perpendicular to another?
no
6. The gradient of a line perpendicular to one with gradient m is -1/m

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