Problem 1032

Write the inequality in interval notation.

x < 7




In interval notation, a square bracket is used to show that a number is included in the set and a parenthesis is used to indicate that a number is not included in the set.

The number 7 is not included in the set because the inequality sign is <.

To show that an interval includes all real numbers less than 7, use the symbol  -∞. Recall that it does not represent an actual number.

The interval notation of the inequality is (-∞,7).




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