Math Problem Statement

Graph the linear inequality: x - y >= 3

Solution

The linear inequality given is:

xy3x - y \geq 3

Let's solve and graph this step by step:

Step 1: Rewrite the inequality

We first rearrange the inequality to express yy in terms of xx:

xy3x - y \geq 3

Subtract xx from both sides:

y3x-y \geq 3 - x

Now, multiply through by 1-1 to solve for yy, remembering to reverse the inequality:

yx3y \leq x - 3

Step 2: Graph the boundary line

The boundary line is the equation y=x3y = x - 3. This line has a slope of 1 and a y-intercept of 3-3. Since the inequality is yx3y \leq x - 3, the graph will include the area below this line.

  • Solid Line: Because the inequality is \leq, we will draw a solid line to include points on the line y=x3y = x - 3.
  • Shaded Region: The region below the line represents the solutions to the inequality yx3y \leq x - 3.

Step 3: Shading the region

Since the inequality is yx3y \leq x - 3, we will shade the area below the line y=x3y = x - 3.

I can now visualize this inequality graph for you.

Should I generate the graph for this inequality?

Related Questions:

  1. How do we graph inequalities with different slopes?
  2. What is the effect of switching the inequality symbol on the graph?
  3. How can you check whether a point lies in the solution set of an inequality?
  4. What changes occur if we use yx3y \geq x - 3 instead of yx3y \leq x - 3?
  5. How does the slope-intercept form help in graphing linear inequalities?

Tip:

Always check which side of the boundary line you need to shade by testing a point, such as (0,0)(0, 0), in the inequality.

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Math Problem Analysis

Mathematical Concepts

Linear Inequalities
Graphing
Algebra

Formulas

y <= x - 3

Theorems

Slope-intercept form of a line
Inequality solving

Suitable Grade Level

Grades 8-10