Math Problem Statement
Solution
The inequality provided is . To solve and graph this inequality, we need to understand what the absolute value inequality means:
-
implies that the distance of from 0 is greater than 2. In other words, is either less than -2 or greater than 2.
- This splits into two inequalities:
In terms of a number line:
- The solution consists of two regions: one to the left of -2 and one to the right of 2.
- The values at and are not included in the solution, so we use open circles at -2 and 2.
- The graph should have arrows extending leftward from -2 and rightward from 2, representing all values less than -2 and greater than 2.
Correct Answer:
The correct graph will have open circles at -2 and 2, with shaded lines extending outwards from these points (to the left of -2 and to the right of 2).
From the image:
- The bottom-right graph correctly represents the inequality , with open circles at -2 and 2 and shading to the left of -2 and right of 2.
Would you like more details or have any questions?
Here are five related questions to expand on this concept:
- How would you graph instead of ?
- What does the graph of look like?
- How do you solve inequalities with absolute values inside a quadratic equation?
- How do you represent compound inequalities on a number line?
- What real-life scenarios can be modeled by absolute value inequalities?
Tip: When graphing absolute value inequalities, always remember to split the inequality into two cases and check whether to include or exclude the boundary points (using open or closed circles).
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Math Problem Analysis
Mathematical Concepts
Absolute Value Inequality
Number Line Graphing
Formulas
|x| > a implies x < -a or x > a
Theorems
Absolute Value Inequality Theorem
Suitable Grade Level
Grades 8-10