Math Problem Statement

Determine if the point (-2, 4) is the solution of the inequality y ≥ -2x + 3.

Solution

The image presents a problem involving a linear inequality and a question about determining whether a point lies within a shaded region.

The inequality shown is: y2x+3y \geq -2x + 3 The problem asks if the point (2,4)(-2, 4) satisfies this inequality.

Steps to Solve:

  1. Substitute the coordinates of the point (2,4)(-2, 4) into the inequality to check if it's a solution:

    • The inequality is y2x+3y \geq -2x + 3.
    • For the point (2,4)(-2, 4), x=2x = -2 and y=4y = 4.
  2. Substitute into the equation: 42(2)+34 \geq -2(-2) + 3 Simplifying the right-hand side: 44+34 \geq 4 + 3 474 \geq 7

  3. Conclusion: The inequality 474 \geq 7 is false. Therefore, the point (2,4)(-2, 4) does not satisfy the inequality.

In the sketch provided, it appears there's a graph of the inequality, with shading showing the region that satisfies the inequality. The point (2,4)(-2, 4) falls outside the shaded region, confirming that it is not a solution.

Would you like further details on solving inequalities or graphing them? Here are a few follow-up questions for practice:

  1. How do you graph a linear inequality like y2x+3y \geq -2x + 3?
  2. What changes when the inequality symbol is >> instead of \geq?
  3. What does the boundary line represent in the context of an inequality?
  4. How do you determine the shaded region in an inequality graph?
  5. Can a point lie exactly on the boundary line and still satisfy the inequality?

Tip: When graphing linear inequalities, the boundary line is solid for \geq or \leq and dashed for >> or <<.

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Math Problem Analysis

Mathematical Concepts

Linear Inequalities
Graphing
Coordinate Geometry

Formulas

y ≥ -2x + 3

Theorems

Substitution Method for Inequality
Graphical Representation of Inequality

Suitable Grade Level

Grades 8-10