Question

A raiz da função F(x) = -4/3 + 8/9 x é:

A) 3/2 b) - 4/9 c) 20/9 d) 32/27 e) 4/9

Answer 1

-4/3 + 8/9 x = 0
8/9 x = 4/3
multiplica em cruz
8x×3 = 9×4
24x = 36
x = 36/24
x = 3/2
Resposta: alternativa A