Question

Calcular la distancia entre los puntos A(-3,2) y B(1.-1)

Answer 1

Respuesta:

1) A(-3,2) y B(1,-1)

$d = \sqrt{(x_{2} -x_{1} )^{2} + (y_{2} - y_{1} )^{2} } \\ d = \sqrt{(-3 - 1 )^{2} + (2+1 )^{2} } \\ d = \sqrt{( -4 )^{2} + ( 3 )^{2} } \\ d = \sqrt{16 + 9} \\ d = \sqrt{25} \\ d = 5$

2) P(6,5) y Q(-7,-3)

$d = \sqrt{(x_{2} -x_{1} )^{2} + (y_{2} - y_{1} )^{2} } \\ d = \sqrt{(6 + 7 )^{2} + (5 + 3 )^{2} } \\ d = \sqrt{( 13 )^{2} + ( 8 )^{2} } \\ d = \sqrt{169 + 64} \\ d = \sqrt{233} \\ d = 15.264$