Inequality Graph D95063
1. **State the problem:** We need to find the graph that best represents the solution set for the system of inequalities:
$$y \leq -\frac{2}{3}x - 2$$
$$y \geq 2x + 2$$
2. **Understand the inequalities:**
- The first inequality, $y \leq -\frac{2}{3}x - 2$, means the solution includes all points on or below the line with slope $-\frac{2}{3}$ and y-intercept $-2$.
- The second inequality, $y \geq 2x + 2$, means the solution includes all points on or above the line with slope $2$ and y-intercept $2$.
3. **Find the intersection point of the two lines:**
Set the right sides equal to find where the lines cross:
$$-\frac{2}{3}x - 2 = 2x + 2$$
Multiply both sides by 3 to clear the fraction:
$$-2x - 6 = 6x + 6$$
Bring all terms to one side:
$$-2x - 6 - 6x - 6 = 0$$
$$-8x - 12 = 0$$
Solve for $x$:
$$-8x = 12$$
$$x = -\frac{12}{8} = -\frac{3}{2} = -1.5$$
Find $y$ by substituting $x = -1.5$ into one of the lines, e.g., $y = 2x + 2$:
$$y = 2(-1.5) + 2 = -3 + 2 = -1$$
So the lines intersect at $(-1.5, -1)$.
4. **Analyze the solution region:**
- For $y \leq -\frac{2}{3}x - 2$, the shaded region is below the line.
- For $y \geq 2x + 2$, the shaded region is above the line.
The solution set is the intersection of these two regions.
5. **Check the graphs:**
- Graph a shows the correct shading: below the first line and above the second line, with an overlapping region.
- Graphs b, c, and d have incorrect shading.
**Final answer:** The graph that best represents the solution set is **Graph a**.