Match each equation or inequality in Column I with the graph of its solution set in Column II. | x | = 7

Key Concepts

Absolute Value

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, |x| = 7 means that x can be either 7 or -7, as both values are 7 units away from zero. Understanding absolute value is crucial for solving equations and inequalities that involve it.

Graphing Solutions

Graphing the solution set of an equation or inequality involves representing all possible solutions on a number line or coordinate plane. For |x| = 7, the solutions x = 7 and x = -7 would be represented as points on the number line. This visual representation helps in understanding the nature of the solutions.

Inequalities vs. Equations

Equations state that two expressions are equal, while inequalities express a relationship where one expression is greater than, less than, or not equal to another. In the context of |x| = 7, it is an equation, but understanding how to interpret inequalities like |x| < 7 or |x| > 7 is also important for broader applications in algebra.