Question

calcule a distância entre os pontos A (4,-3) e B(-4,3).

Answer 1

$d = \sqrt{(x - x_{0})^{2} + (y - y_{0})^{2} }\\d = \sqrt{(4 - (-4))^{2} + (-3 - 3)^{2} }\\d = \sqrt{(8)^{2} + (-6)^{2} }\\d = \sqrt{64 +36 }\\d = \sqrt{100 }\\d = 10$