Unit 1B Test Review

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What is an inequality?

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An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other.

Tags

CCSS.6.EE.B.8

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What does it mean to solve an inequality?

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To solve an inequality means to find all values of the variable that make the inequality true.

Tags

CCSS.6.EE.B.8

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What is the rule for solving inequalities when multiplying or dividing by a negative number?

Back

When multiplying or dividing both sides of an inequality by a negative number, you must flip the inequality sign.

Tags

CCSS.6.EE.B.8

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What is a compound inequality?

Back

A compound inequality is an inequality that combines two or more inequalities, often using 'and' or 'or'.

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What does it mean if an equation has infinitely many solutions?

Back

An equation has infinitely many solutions if any value of the variable satisfies the equation.

Tags

CCSS.8.EE.C.7A

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The simplified form shows that the equation has infinitely many solutions.

Tags

CCSS.8.EE.C.7A

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What is the difference between 'one solution' and 'no solution' in equations?

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'One solution' means there is exactly one value that satisfies the equation, while 'no solution' means there are no values that satisfy the equation.

Tags

CCSS.8.EE.C.7A

Front

What does it mean to 'flip' the inequality sign?

Back

To 'flip' the inequality sign means to change it from '<' to '>' or from '>' to '<' when multiplying or dividing by a negative number.

Tags

CCSS.6.EE.B.8