Question

A distância entre os pontos A=(3,-7) e B=(3,0) ,é :
a) 7
B) 8
c)10
D) 11
E) 13

Answer 1

dist(A, B) = [(3 - 3)^2 + (0 - (- 7))^2]^(1/2)
dist(A, B) = [0^2 + 7^2]^(1/2)
dist(A, B) = [0 + 49]^(1/2)
dist(A, B) = [49]^(1/2)
dist(A, B) = 7

Resposta: a) 7