Question

Warm-Up

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Applying the Distance Formula
Warm-Up
y
Find the length of DE using the distance formula.
d = V(x2 – xz)2+(12-W?
4
The length of DE is
units.
3
D(-4,2)
2.
-5 -4 -8 -2
2 3 4 5
E(4, -4)

Answer 1

using the formula

we replace the coordinates

the we calculate

the answer will be square 100 which will give us 10