Math Problem Statement

Which linear inequality is represented on this graph?

Solution

To determine which linear inequality is represented on the graph, let's analyze the key characteristics of the shaded region and the boundary line.

Step 1: Analyzing the Slope and Y-Intercept

  1. The boundary line on the graph has a slope and intercept we can identify:

    • The line appears to pass through points such as (0,6)(0, -6) and (2,5)(2, -5).
    • Using these points, we can calculate the slope mm using the formula: m=y2y1x2x1=5+620=12m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-5 + 6}{2 - 0} = \frac{1}{2}
    • Therefore, the slope of the line is 12\frac{1}{2}, and the y-intercept is 6-6.
  2. Thus, the equation of the line is: y=12x6y = \frac{1}{2}x - 6

Step 2: Determining the Inequality

  1. The region below the line is shaded, indicating a "less than or equal to" inequality.
  2. Since the line is dashed, it suggests a strict inequality (either << or >>).

Conclusion

The inequality that represents the shaded region is: y<12x6y < \frac{1}{2}x - 6

So, the correct answer is: y<12x6y < \frac{1}{2}x - 6.

Would you like a breakdown of how to interpret different types of inequalities on graphs?


Here are some follow-up questions that may help deepen your understanding:

  1. How do you determine the slope of a line from a graph?
  2. Why does a dashed line represent a strict inequality?
  3. What does shading below the line indicate in terms of inequalities?
  4. How can you determine if a graph shows a "less than" or "greater than" inequality?
  5. What would change if the line were solid instead of dashed?

Tip: Remember, when identifying inequalities from graphs, the slope and y-intercept of the line, along with the shading direction, are key indicators of the inequality type.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Linear Inequalities
Graphing Inequalities

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)
Slope-intercept form: y = mx + b

Theorems

Properties of Inequalities
Graphing Linear Inequalities

Suitable Grade Level

Grades 8-10