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Published byDerick Chapman Modified over 9 years ago
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Intro to Inequalities Unit 4 Section 4.1
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Definition A statement that a mathematical expression is greater than or less than another expression.
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Symbols < less than ≤ less than or equal to > greater than ≥ greater than or equal to
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Solutions Your solution can be represented as an inequality with a shaded number line, interval notation, and in words. The solution indicates all number sets that make the inequality true. For example, what does the solution to x < 2 look like?
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Graphing If you are graphing a “less than” or “greater than” you are not including the number in your solution. This is shown with an open circle on the number line, or a parentheses when using interval notation.
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Graphing If you are graphing a “less than or equal to” or a “greater than or equal to” you are including the number in your solution. This is shown with a closed circle on the number line, or a bracket when using interval notation.
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Reading and graphing an inequality
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Reading and graphing inequality
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Interval Notation Graph the following inequalities and also express the answer in interval notation.
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