Math Problem Statement

Graph the solution of the system of linear inequalities: x ≤ 5 and y ≥ -8.

Solution

The system of linear inequalities provided is:

x5andy8x \leq 5 \quad \text{and} \quad y \geq -8

Step-by-Step Graphing:

  1. First Inequality: x5x \leq 5

    • This represents all points to the left of (or on) the vertical line x=5x = 5.
    • The boundary line will be x=5x = 5, a vertical line at x=5x = 5, and it will be solid because the inequality includes equality ("≤").
    • Shade the region to the left of this line, where x5x \leq 5.
  2. Second Inequality: y8y \geq -8

    • This represents all points above (or on) the horizontal line y=8y = -8.
    • The boundary line will be y=8y = -8, a horizontal line at y=8y = -8, and it will be solid because the inequality includes equality ("≥").
    • Shade the region above this line, where y8y \geq -8.

Graph Intersection:

  • The solution to this system is the region where both shaded areas overlap.
  • This is the area that lies to the left of the line x=5x = 5 and above the line y=8y = -8.
  • The lines themselves are included in the solution because both inequalities are non-strict (≤ and ≥).

Would you like a detailed graph of this solution?

Here are 5 related questions for you:

  1. What happens if one of the inequalities had been strict (e.g., x<5x < 5 or y>8y > -8)?
  2. How do we interpret inequalities when both variables are involved (like y>x+2y > x + 2)?
  3. What is the significance of using solid vs. dashed boundary lines in graphing inequalities?
  4. Can you find the area of the solution region if these inequalities bounded a specific shape?
  5. How would you approach solving a system of inequalities with more than two conditions?

Tip: Always pay attention to whether the inequality includes equality (≤ or ≥) as it determines whether the boundary line should be solid or dashed.

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Math Problem Analysis

Mathematical Concepts

Linear Inequalities
Graphing

Formulas

Inequality expressions (x ≤ 5, y ≥ -8)
Graphing horizontal and vertical boundary lines

Theorems

Graphing inequalities on the coordinate plane

Suitable Grade Level

Grades 7-10