English
Solving Systems of Linear Inequalities

Assignment: Describing a Solution

Graphically, a point is a solution to a system of two inequalities if and only if the point:

A. Lies in the shaded region of the top inequality, but not in the shaded region of the bottom inequality.
B. Lies in the shaded region of the bottom inequality, but not in the shaded region of the top inequality.
C. Lies in the shaded regions of both the top and bottom inequalities.
D. Does not lie in the shaded region of the top or bottom inequalities.



Answer :

Certainly! Let's walk through the solution to this question step by step.

### Understanding the Problem
The problem asks us to determine the condition under which a point is a solution to a system of two inequalities, based on the shaded regions created by these inequalities on a graph.

### Analysis of Possible Cases
When graphing two inequalities on the same coordinate plane, several scenarios can arise regarding where a point lies relative to these shaded regions:
1. A point lies in the shaded region of the top inequality, but not in the shaded region of the bottom inequality.
2. A point lies in the shaded region of the bottom inequality, but not in the shaded region of the top inequality.
3. A point lies in the shaded regions of both the top and bottom inequalities.
4. A point does not lie in the shaded region of the top or bottom inequalities.

### Determining the Solution
For a point to be a solution to the system of two inequalities, it must satisfy both inequalities simultaneously. Graphically, this means the point must lie in the overlap of the shaded regions of both inequalities.

### Conclusion
Based on our analysis, a point is a solution to a system of two inequalities if and only if it lies in the shaded regions of both the top and bottom inequalities. Therefore, the correct choice from the options provided is:

3. A point lies in the shaded regions of both the top and bottom inequalities.

This is the detailed, step-by-step reasoning to determine how we find a point that is a solution to the system of two inequalities.