Question

Encontre a distancia entre os pontos dados C ( -1, 4) e D (-2, 3)

Answer 1

              ________________
DCD = √[(-2 - (-1)]² + (3 - 4)²
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              ______________
DCD = √( - 2 + 1)² + (-1)² 
============================
              _________
DCD = √ (-1)² + 1
=================
              _____
DCD = √ 1 + 1
=================
              __
DCD = √ 2

Answer 2

d(C,D) = √ (Xa - Xb)² + (Ya - Yb)²
d(C,D) = √ [-1 - (-2)]² + (4 - 3)²
d(C,D) = √ (1 + 1)
d(C,D) = √ 2