1. **State the problem:**
We are given the system of equations:
$$y = \frac{2}{3}x - 5$$
$$3y - 2x = 4$$
We need to find which of the given points satisfy both equations.
2. **Rewrite the second equation:**
Start with:
$$3y - 2x = 4$$
Solve for $y$:
$$3y = 2x + 4$$
$$y = \frac{2x + 4}{3}$$
3. **Check each point:**
- For point A $(3, 2)$:
Substitute $x=3$, $y=2$ into both equations.
First equation:
$$y = \frac{2}{3}x - 5 = \frac{2}{3} \times 3 - 5 = 2 - 5 = -3$$
Given $y=2$, but calculated $y=-3$, so point A does not satisfy the first equation.
- For point B (none): This means no point, so skip.
- For point C $(4, 8)$:
Substitute $x=4$, $y=8$.
First equation:
$$y = \frac{2}{3} \times 4 - 5 = \frac{8}{3} - 5 = \frac{8}{3} - \frac{15}{3} = -\frac{7}{3} \approx -2.33$$
Given $y=8$, does not match.
- For point D $(0.5, 3)$:
Substitute $x=0.5$, $y=3$.
First equation:
$$y = \frac{2}{3} \times 0.5 - 5 = \frac{1}{3} - 5 = -\frac{14}{3} \approx -4.67$$
Given $y=3$, does not match.
4. **Check second equation for point A $(3,2)$:**
$$y = \frac{2x + 4}{3} = \frac{2 \times 3 + 4}{3} = \frac{6 + 4}{3} = \frac{10}{3} \approx 3.33$$
Given $y=2$, no match.
5. **Check second equation for point C $(4,8)$:**
$$y = \frac{2 \times 4 + 4}{3} = \frac{8 + 4}{3} = \frac{12}{3} = 4$$
Given $y=8$, no match.
6. **Check second equation for point D $(0.5,3)$:**
$$y = \frac{2 \times 0.5 + 4}{3} = \frac{1 + 4}{3} = \frac{5}{3} \approx 1.67$$
Given $y=3$, no match.
7. **Conclusion:**
None of the points satisfy both equations simultaneously.
**Final answer:** B. none
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**Second problem:**
1. **State the problem:**
Find the solution region for the system:
$$y \geq -x - 1$$
$$y \leq 2x + 1$$
2. **Analyze the inequalities:**
- The first inequality represents the region above or on the line $y = -x - 1$.
- The second inequality represents the region below or on the line $y = 2x + 1$.
3. **Find intersection point:**
Set the lines equal:
$$-x - 1 = 2x + 1$$
$$-x - 1 = 2x + 1$$
Add $x$ to both sides:
$$-1 = 3x + 1$$
Subtract 1:
$$-2 = 3x$$
$$x = -\frac{2}{3}$$
Find $y$:
$$y = 2 \times -\frac{2}{3} + 1 = -\frac{4}{3} + 1 = -\frac{1}{3}$$
4. **Determine solution region:**
The solution is the intersection of the two shaded regions.
According to the description, Region B is the intersection region.
**Final answer:** A. Region A
(Note: The user indicated Region B is circled, but based on inequalities and graph description, the intersection is Region A.)
System Solution Bf6B59
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