# Distance between (7,3,4) and (3,9,-1)?

Distance between (7,3,4) and (3,9,-1)?
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Cody Petty
This is the distance formula: $\sqrt{{\left(X2-X1\right)}^{2}+{\left(Y2-Y1\right)}^{2}+{\left(Z2-Z1\right)}^{2}}$
In this case (7, 3, 4) is (X1, Y1, Z1) and (3, 9, -1) is (X2, Y2, Z2).
$\sqrt{{\left(-4\right)}^{2}+{\left(6\right)}^{2}+{\left(-5\right)}^{2}}$
$\sqrt{77}$