What is the length of PQ?

Question

PQ has endpoints at P(-5,4) and Q(7,-5)

Answer 1

Distance formula:

d = √[(x1 - x2)^2 + (y1 - y2)^2]

x₁ = 7, x₂ = -5, y₁ = -5, y₂ = 4

 

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