Question

Fie functia f:R->R , f(x) = mx+3m-2
Pentru m=2 , determinati multimea A= {$x apartine Z ; |f(x)| \leq 1$}

Answer 1

mx+3m-2$\leq 1$
2x+3*2-2$\leq 1$
2x+6-2$\leq 1$
2x+4$\leq 1$
2x$\leq$1-4
2x$\leq -3$
x$\leq \frac{-3}{2}$