Question

Determine o zero da função: f(x)= -5x -12

Answer 1

f(x)= -5x -12
-5x -12=0
-5x=12 .(-1)
5x= -12
x= -12/5     ou
x= - 2,4

Answer 2

    y= - 5x -12

     y=0 ==> -5x - 12 =0 ==> 5x = -12 ==> x= -12/5