Check the domain and range of the relation. $\{(2,6),(6,7),(8,9)\}$

Graph the function, and identify the $x$-and $y$-intercepts. $f(x)=x^3-2 x^2-4 x+8$

Graph the function, and state its domain and range. $y=0.25 x-0.5$

Make the graph of each function or relation, and state the domain and range.

$$f(x)= \begin{cases}\sqrt{x} & \text { for } x \geq 0 \\ -x-3 & \text { for } x<0\end{cases}$$

Check whether $y$ is a function of $x$ using the ordered pairs given in the table.

$$\begin{array}{|r|r|r|r|r|r|} \hline x & -1 & 0 & 3 & 4 & 3 \\ \hline y & 4 & 2 & 6 & 8 & 5 \\ \hline \end{array}$$

Check whether the relation is a function. $\{(5,7),(5,10),(5,3)\}$

Determine the domain of the rational function. $f(x)=\frac{2}{x-1}$

Graph the function, and identify the $x$-and $y$-intercepts. $f(x)=x^3+1$

Graph the function, and state its domain and range. $h(x)=-2$

Solve the problem. Check whether $\{(0,5),(9,5),(4,5)\}$ is a function.

Simplify the expression. $125^{-2 / 3}$

In the situation check whether $y$ is a function of $x$. Explain your answer. Consider all gas stations in your area. Let $x$ represent the price per gallon of regular unleaded gasoline and $y$ represent the number of gallons that you can get for $\$ 10$.

Check whether the function is invertible. If it is invertible, then find the inverse. $\{(1,3),(2,9)\}$

Read the following chart, then answer the questions using the superlative.

$$\begin{array}{|l|c|c|c|c|} & \text { Rachid } & \text { Justin } & \text { Rose } & \text { Malika } \\ \hline \text { Travailler en semaine } & 25 h & 30 \mathrm{~h} & 22 \mathrm{~h} & 20 \mathrm{~h} \\ \hline \text { Se lever le weekend } & 9 h 00 & 10 h 00 & 8 \mathrm{~h} 30 & 7 \mathrm{h00} \\ \hline \text { Acheter au McDo } & 3,50 \epsilon & 6 \epsilon & 5,50 \epsilon & 4 \epsilon \\ \hline \text { Aller au cinéma } & 2 / \text { mois } & 3 / \text { mois } & 4 / \mathrm{mois} & \\ \hline \text { Faire du sport } & 5 / \text { semaine } & 5 / \text { semaine } & 3 / \text { semaine } & 2 / \text { semaine } \\ \hline \end{array}$$

Qui ach$\`{e}$te le moins au McDo?