Math Problem Statement

Graph the inequality y ≤ -3/4x + 5.

Solution

The inequality given in the image is y34x+5y \leq -\frac{3}{4}x + 5.

Steps to graph the inequality:

  1. Plot the boundary line: The equation of the boundary line is y=34x+5y = -\frac{3}{4}x + 5. Since the inequality is \leq, the boundary line will be solid, meaning that points on the line are included in the solution.

    • The slope is 34-\frac{3}{4}, so for every 4 units you move to the right, you go down by 3 units.
    • The y-intercept is 5, so the line crosses the y-axis at (0,5)(0, 5).
  2. Shade the region: Since the inequality is y34x+5y \leq -\frac{3}{4}x + 5, you will shade the area below the line, where the y-values are less than or equal to the line.

Key Points:

  • Start at (0,5)(0, 5) on the y-axis.
  • Move according to the slope: down 3 and right 4 to plot additional points like (4,2)(4, 2) or (4,8)(-4, 8).
  • Draw the solid line through these points.
  • Shade below the line.

Do you need further details on any part of this? Let me know! Here are some follow-up questions:

  1. Why is the line solid instead of dashed?
  2. How do you determine which side of the line to shade?
  3. What does the slope 34-\frac{3}{4} represent in the context of this inequality?
  4. How would the graph change if the inequality were y>34x+5y > -\frac{3}{4}x + 5?
  5. Can you find the x-intercept of the boundary line?

Tip: Always remember that if the inequality sign is \leq or \geq, the boundary line should be solid, while for << or >>, the line should be dashed.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Inequalities
Graphing

Formulas

Slope-Intercept Form y = mx + b
Linear Inequality

Theorems

Graphing Linear Inequalities

Suitable Grade Level

Grades 8-10