Find detailed and accurate answers to your questions on IDNLearn.com. Explore thousands of verified answers from experts and find the solutions you need, no matter the topic.

Which graph is the solution to the system [tex]y \geq 2x - 3[/tex] and [tex]y \ \textless \ 2x + 4[/tex]?

Sagot :

To determine the solution to the system of inequalities [tex]\( y \geq 2x - 3 \)[/tex] and [tex]\( y < 2x + 4 \)[/tex], we need to analyze the region that satisfies both conditions.

### Step-by-Step Solution

1. Understand the Inequalities:
- [tex]\( y \geq 2x - 3 \)[/tex]: This inequality represents the region that is on or above the line [tex]\( y = 2x - 3 \)[/tex].
- [tex]\( y < 2x + 4 \)[/tex]: This inequality represents the region that is below the line [tex]\( y = 2x + 4 \)[/tex].

2. Identify the Lines:
- The first line is [tex]\( y = 2x - 3 \)[/tex].
- The second line is [tex]\( y = 2x + 4 \)[/tex].

3. Plotting the Lines:
- We'll plot both lines on a coordinate plane.
- The line [tex]\( y = 2x - 3 \)[/tex] will be a solid line because the inequality [tex]\( y \geq 2x - 3 \)[/tex] includes the boundary.
- The line [tex]\( y = 2x + 4 \)[/tex] will be a dashed line because the inequality [tex]\( y < 2x + 4 \)[/tex] does not include the boundary.

4. Determine the Region of Interest:
- The region of interest is the set of points that lie above or on the line [tex]\( y = 2x - 3 \)[/tex] and below the line [tex]\( y = 2x + 4 \)[/tex].
- This region is bounded between the two lines.

5. Test Points to Verify the Region:
- For instance, if we choose a point between the lines, such as [tex]\((0, 0)\)[/tex]:
- Check [tex]\( y = 0 \geq 2(0) - 3 \implies 0 \geq -3 \)[/tex] (True)
- Check [tex]\( y = 0 < 2(0) + 4 \implies 0 < 4 \)[/tex] (True)
- This point satisfies both inequalities, confirming it lies in the solution region.

6. Conclusion:
- The combined region consists of all points between [tex]\( y = 2x - 3 \)[/tex] (inclusive) and [tex]\( y = 2x + 4 \)[/tex] (exclusive) as we vary [tex]\( x \)[/tex].

By examining the lines and the inequalities, we can visualize the solution graphically. This region should look like a band or strip between two lines flowing upward diagonally, with one boundary being a solid line and the other a dashed line.