Match the inequality in each exercise in Column I with its equivalent interval notation in Column II. x≤6

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Identify the inequality given: \(x \leq 6\) means that \(x\) can be any number less than or equal to 6.

Recall that interval notation expresses the set of all numbers that satisfy the inequality using brackets and parentheses.

Since \(x\) can be any number less than or equal to 6, the interval extends from negative infinity up to 6, including 6.

Use a parenthesis for infinity because infinity is not a number and cannot be included, and use a bracket for 6 because it is included: \((-\infty, 6]\).

Match the inequality \(x \leq 6\) with the interval notation \((-\infty, 6]\).

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Inequalities

Inequalities express a relationship where one quantity is less than, greater than, or equal to another. In this case, x ≤ 6 means all values of x are less than or equal to 6. Understanding how to interpret and manipulate inequalities is essential for solving and representing them.

Interval Notation

Interval notation is a concise way to represent sets of numbers on the number line. For inequalities like x ≤ 6, the interval includes all numbers up to 6, often written as (-∞, 6]. The square bracket indicates inclusion of the endpoint, while a parenthesis indicates exclusion.

Set Representation of Solutions

Solutions to inequalities can be expressed as sets, showing all possible values that satisfy the inequality. Recognizing how to convert between inequality notation and set or interval notation helps in understanding the solution's scope and communicating it clearly.