Question

Find the domain and range of the following function:
$\{\begin{array}{c}x+7if-3\le x<5\\ x^{2}if5\le x<7\\ 6-2xifx\ge 7\end{array}$

Answer 1

Range $\in [4,12)\cup [25,49)\cup [-8,-\infty )$

Range $\in (-\infty ,-8]\cup [4,12)\cup [25,49)$