SOLUTION: Find the distance between (–6, 4) and (3, –8). Another easy one that i am blanking on.

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Question 127044: Find the distance between (–6, 4) and (3, –8). Another easy one that i am blanking on.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Start with the given distance formula
d=sqrt%28%28x%5B1%5D-x%5B2%5D%29%5E2%2B%28y%5B1%5D-y%5B2%5D%29%5E2%29 where is the first point and is the second point

d=sqrt%28%28-6-3%29%5E2%2B%284--8%29%5E2%29 Plug in x%5B1%5D=-6, x%5B2%5D=3, y%5B1%5D=4, y%5B2%5D=-8

d=sqrt%28%28-9%29%5E2%2B%2812%29%5E2%29 Evaluate -6-3 to get -9. Evaluate 4--8 to get 12.

d=sqrt%2881%2B144%29 Square each value

d=sqrt%28225%29 Add

d=15 Simplify the square root (note: If you need help with simplifying the square root, check out this solver)

So the distance between (-6,4) and (3,-8) is 15 units