Chapter 8 - Radical Functions - Chapter Review Exercises - Page 669: 9

Domain: $-\infty< x< \infty$ Range: $-\infty< y< \infty$

Given \begin{equation} f(x)=-2 \sqrt[3]{x}. \end{equation} The domain and range of an odd index radical function are all real numbers. Therefore we have: \begin{equation} \begin{aligned} \textbf{Domain :}\quad & -\infty< x< \infty\\ \textbf{Range :}\quad & -\infty< y< \infty\\\\ \end{aligned} \end{equation}