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Homework Help (Coordinate Geometry)

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Find the distance between the points P(-4,7) &Q (2,-5)

Distance between two points P & Q are given by( (x2-x1)^2+(y2-y1)
^2
)^1/2

=((2-(-4))^2+(-5-7)^2)^1/2

=(6^2+(-12)^2)^1/2

=(36+44)^1/2

=6(5^1/2)sq units