1. **State the problem:**
We are given a system of inequalities:
- $x \geq 3$
- $y \leq 9$
- $x + y \leq 14$
- $8x + 15y \geq 150$
We want to understand the feasible region defined by these inequalities and verify that the point $(5,8)$ is a solution.
2. **Explain the inequalities:**
- $x \geq 3$ means all points to the right of or on the vertical line $x=3$.
- $y \leq 9$ means all points below or on the horizontal line $y=9$.
- $x + y \leq 14$ means all points on or below the line $y = 14 - x$.
- $8x + 15y \geq 150$ means all points on or above the line $y = \frac{150 - 8x}{15}$.
3. **Check the point $(5,8)$:**
- Check $x \geq 3$: $5 \geq 3$ is true.
- Check $y \leq 9$: $8 \leq 9$ is true.
- Check $x + y \leq 14$: $5 + 8 = 13 \leq 14$ is true.
- Check $8x + 15y \geq 150$: $8(5) + 15(8) = 40 + 120 = 160 \geq 150$ is true.
All inequalities are satisfied by $(5,8)$.
4. **Summary:**
The feasible region is the intersection of all these inequalities, which forms a polygon bounded by the lines $x=3$, $y=9$, $x+y=14$, and $8x+15y=150$. The point $(5,8)$ lies inside this region.
Inequalities System 3Fa237
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