Responder
The point \( \left(\frac{18}{5}, -1\right) \) satisfies both inequalities.
Solución
To determine which point satisfies both inequalities, we need to analyze each inequality and understand the regions they represent on a graph.
1. **First Inequality:**
\[
y < -\frac{5}{6} x + 2
\]
This inequality represents the area below the line \( y = -\frac{5}{6} x + 2 \). The line has a slope of \(-\frac{5}{6}\) and a y-intercept of \(2\).
2. **Second Inequality:**
\[
y > \frac{5}{6} x - 4
\]
This inequality represents the area above the line \( y = \frac{5}{6} x - 4 \). The line has a slope of \(\frac{5}{6}\) and a y-intercept of \(-4\).
### Steps to Identify the Region:
- **Graph the lines:**
- For the first line \( y = -\frac{5}{6} x + 2 \):
- When \( x = 0 \), \( y = 2 \) (point \( (0, 2) \)).
- When \( y = 0 \), \( 0 = -\frac{5}{6} x + 2 \) leads to \( x = \frac{12}{5} \) (point \( \left(\frac{12}{5}, 0\right) \)).
- For the second line \( y = \frac{5}{6} x - 4 \):
- When \( x = 0 \), \( y = -4 \) (point \( (0, -4) \)).
- When \( y = 0 \), \( 0 = \frac{5}{6} x - 4 \) leads to \( x = \frac{24}{5} \) (point \( \left(\frac{24}{5}, 0\right) \)).
### Finding the Intersection:
To find the point that satisfies both inequalities, we can find the intersection of the two lines by setting them equal to each other:
\[
-\frac{5}{6} x + 2 = \frac{5}{6} x - 4
\]
Now, let's solve for \( x \):
1. Add \(\frac{5}{6} x\) to both sides:
\[
2 = \frac{5}{6} x + \frac{5}{6} x - 4
\]
\[
2 = \frac{10}{6} x - 4
\]
2. Add \(4\) to both sides:
\[
6 = \frac{10}{6} x
\]
3. Multiply both sides by \(\frac{6}{10}\):
\[
x = \frac{36}{10} = \frac{18}{5}
\]
Now substitute \( x = \frac{18}{5} \) back into one of the original equations to find \( y \):
Using the first equation:
\[
y = -\frac{5}{6} \left(\frac{18}{5}\right) + 2 = -\frac{18}{6} + 2 = -3 + 2 = -1
\]
Thus, the intersection point is \( \left(\frac{18}{5}, -1\right) \).
### Conclusion:
The point \( \left(\frac{18}{5}, -1\right) \) satisfies both inequalities, as it lies in the region below the first line and above the second line.
Respondido por UpStudy AI y revisado por un tutor profesional

Explicar

Simplifique esta solución