Math Problem Statement

Which graph represents the inequality y ≥ 2 - 2x?

Solution

To determine which graph represents the inequality y22xy \geq 2 - 2x, let's break it down step by step.

Steps to Analyze the Inequality

  1. Rewrite the inequality in slope-intercept form y2x+2y \geq -2x + 2.

    • The slope mm is 2-2.
    • The yy-intercept is 22.
  2. Graph the Boundary Line:

    • The boundary line is y=2x+2y = -2x + 2.
    • Since the inequality is \geq, the boundary line will be solid, and the shading will be above the line.
  3. Identify the Correct Graph:

    • Look for a graph with a solid line with slope 2-2 (downward slope).
    • The shading should be on the side where yy values are greater than or equal to the line.

Correct Graph Analysis

Upon examining the options:

  • The top right graph shows a solid line with a slope of 2-2 and shading above the line.

Therefore, the correct graph is the top right graph.


Need more details or clarification?

Related Questions:

  1. How do you determine the slope and intercept from an equation?
  2. What does the inequality symbol \geq signify in a graph?
  3. Why is the line solid instead of dashed for \geq inequalities?
  4. How do you determine which side of the line to shade?
  5. Can you explain how to graph y2x+2y \geq -2x + 2 step by step?

Tip:

For inequalities, always remember to use a solid line for \geq or \leq, and a dashed line for >> or <<.

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Math Problem Analysis

Mathematical Concepts

Linear Inequalities
Graphing
Slope-Intercept Form

Formulas

Slope-intercept form: y = mx + b

Theorems

Properties of Linear Inequalities

Suitable Grade Level

Grades 7-9