Question

Determine o zero da função y = 5x - 75. *

( ) 35
( ) 12
( ) 15
( ) 20

Answer 1

$\sf\:y = 5x - 75 \\ \sf\: 0 = 5x - 75 \\ \sf\:5x = 75 \\ \sf\:x = 75 \div 5 \\ \sf\:x = 15$

Att: Nerd1990