Question

Determine o zero da funçao : y = 1/2 x -2

Answer 1

Olá Franciele,

$y= \dfrac{1}{2}x-2$

Fazendo y=0, teremos:

$\dfrac{1}{2}x-2=0\\\\ \dfrac{1}{2}x=2\\\\ 1*x=2*2\\\\ x=4$

Answer 2

$y = \frac{-1}{2} -2=0 \\ y= \frac{-1}{2} *x= 0+2 \\ \\ \\ y = \frac{-1}{2} *x= 2 \\ \\ y=1= 4 \\ y = \frac{4}{1} = 4$