1. **State the problem:** We need to write the two inequalities that describe the unshaded region on the coordinate plane.
2. **Identify the lines:**
- The solid line passes through points (-3, -3) and (1, 7).
- The dashed line passes through points (-3, 6) and (6, -3).
3. **Find the equation of the solid line:**
- Slope $m = \frac{7 - (-3)}{1 - (-3)} = \frac{10}{4} = 2.5$.
- Using point-slope form with point (-3, -3):
$$y - (-3) = 2.5(x - (-3))$$
$$y + 3 = 2.5(x + 3)$$
$$y = 2.5x + 7.5 - 3 = 2.5x + 4.5$$
4. **Find the equation of the dashed line:**
- Slope $m = \frac{-3 - 6}{6 - (-3)} = \frac{-9}{9} = -1$.
- Using point-slope form with point (-3, 6):
$$y - 6 = -1(x + 3)$$
$$y = -x - 3 + 6 = -x + 3$$
5. **Determine inequalities for the unshaded region:**
- The unshaded region is above the solid line, so:
$$y \geq 2.5x + 4.5$$
- The unshaded region is below the dashed line, so:
$$y \leq -x + 3$$
**Final answer:**
$$y \geq 2.5x + 4.5$$
$$y \leq -x + 3$$
Line Inequalities
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