# Question #b2d18

Nov 13, 2017

$y \ge 9$

#### Explanation:

As the inequalities are currently stated:
$\left\{\begin{matrix}y = 2 x + 3 & \null \\ - 1 \le x \ge 4 & \text{note that this simply implies: } x \ge 4\end{matrix}\right.$

from this it follows that
$y \ge 2 \times \left(4\right) + 1$

$\rightarrow y \ge 9$

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Check that the second inequality was not intended to be
$\textcolor{w h i t e}{\text{XXX}} - 1 \le x \textcolor{red}{\le} 4$