Math Problem Statement

Solve the system of two linear inequalities graphically: x > 2 or y ≥ 7.

Solution

The problem in the image involves solving a system of two linear inequalities graphically. The first step asks to graph the solution set of the first inequality, which is given as:

x>2 or y7x > 2 \text{ or } y \geq 7

Here’s how to approach it:

Step-by-Step Explanation:

1. Graphing the Inequality x>2x > 2:

  • The line x=2x = 2 is a vertical line, and since the inequality is x>2x > 2, the region to the right of this line needs to be shaded.
  • For the boundary:
    • The line is dashed because the inequality is strict (i.e., it does not include x=2x = 2).
    • Enter two points on this vertical line, such as:
      • Point 1: (2,10)(2, -10)
      • Point 2: (2,10)(2, 10)
  • Select the region to the right of this line for shading (this will be the shaded region for x>2x > 2).

2. Graphing the Inequality y7y \geq 7:

  • The line y=7y = 7 is a horizontal line.
  • The inequality y7y \geq 7 includes the line, so the line should be solid.
  • The region above the line y=7y = 7 needs to be shaded.
  • Enter two points on this horizontal line, such as:
    • Point 1: (10,7)(-10, 7)
    • Point 2: (10,7)(10, 7)

Shading the Region:

  • The solution to the system of inequalities involves the union of the regions for x>2x > 2 and y7y \geq 7.
  • For x>2x > 2, shade to the right of the dashed vertical line.
  • For y7y \geq 7, shade above the solid horizontal line.

Would you like further details on this or how to proceed with the graph?

Here are 5 related questions to expand on this:

  1. How do you determine if a boundary line should be solid or dashed?
  2. What is the difference between x>2x > 2 and x2x \geq 2 in graphical terms?
  3. How do you graph a compound inequality involving "or" versus "and"?
  4. How do you find the intersection of two shaded regions for a system of inequalities?
  5. What happens if the inequalities involve << or >> for both xx and yy?

Tip: Always remember to label your boundary lines clearly and distinguish between dashed and solid lines for strict vs. inclusive inequalities.

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Math Problem Analysis

Mathematical Concepts

Algebra
Inequalities
Graphing Inequalities

Formulas

None (Graphing Linear Inequalities)

Theorems

Concept of Linear Inequalities

Suitable Grade Level

Grades 8-10