SOLUTION: HOW IS THIS DONE? WHAT IS THE SLOPE OF A LINE THAT IS PERPENDICULAR TO THE LINE PASSING THROUGH THE POINTS (8,3) AND (10,6)?

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Question 4189: HOW IS THIS DONE?
WHAT IS THE SLOPE OF A LINE THAT IS PERPENDICULAR TO THE LINE PASSING THROUGH THE POINTS (8,3) AND (10,6)?
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
first, find the gradient of the line that passes through the 2 points --> look at my lessons on this topic on this site. They are easy to follow and explain it well.

Once you have that, you need to know that 2 lines that are perpendicular, will have gradients m1 and m2 such that m1*m2 = -1.

So, if your gradient is 3, then the perpendicular line has a gradient of -1/3.

Jon