The Solution Set of a System of Inequalities Is Shown $y+x \leq 7$

Short Answer

The solution set of a system of inequalities is shown below. Which of the following systems is it?

(a) $y+x \leq 7$
$y \geq x^{2}-4 x+3$
(b) $y+x \geq 7$
$y \geq x^{2}-4 x+3$
(c) $\begin{aligned} & y+x \geq 7 \\ & y \leq x^{2}-4 x+3\end{aligned}$
(d) $y+x \leq 7$
$y \leq x^{2}-4 x+3$