QUIZ

Question 1/20
Le tableau de variation de $f\left(x\right)=\dfrac{x+1}{x+2}$ est :
  \begin{array}{c|ccccccc} x & -\infty &2& +\infty \\ \hline f(x) & \nearrow &| |& \nearrow \end{array}
  \begin{array}{c|ccccccc} x & -\infty &2& +\infty \\ \hline f(x) & \searrow &| |& \searrow \end{array}
  \begin{array}{c|ccccccc} x & -\infty && +\infty \\ \hline f(x) & & \nearrow & \end{array}
  \begin{array}{c|ccccccc} x & -\infty &-2& +\infty \\ \hline f(x) & \searrow &| |& \searrow \end{array}
  \begin{array}{c|ccccccc} x & -\infty &-2& +\infty \\ \hline f(x) & \nearrow &| |& \nearrow \end{array}