SOLUTION: find the distance between the points a(3,-7)and b(-5,9

Question 377438: find the distance between the points
a(3,-7)and b(-5,9
Answer by rfadrogane(214) (Show Source): You can put this solution on YOUR website!
find the distance between the points
a(3,-7)and b(-5,9).
sol'n:
distance(d) = sq. root of [(x2-x1)^2+(y2-y1)^2]
so, at pt. P1(3,-7)& P2(-5,9)
d = sq. root of [(-5-3)^2 + (9+7)^2]
d = sq. root of [64 + 256]
d = sq. root of (320)
d = 17.888 units ----answer
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