Question

Calcule a distância entre A (2, -4) e B (5, -3)

Answer 1

d=√(2-5)²+(-4+3)²=√(9)+(1)= √10

Answer 2

A (2, -4) e B (5, -3)

$\Delta x = 5 - 2 = 3 \\ \Delta\:y = - 3 - ( - 4) = - 3 + 4 = 1$

$dab = \sqrt{ {\Delta x}^{2} + {\Delta y}^{2} } \\ dab = \sqrt{ {3}^{2} + {1}^{2}} \\ dab = \sqrt{9 + 1} = \sqrt{10}$