2021 Algebra 1 SOL Review Part 3 of 4

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What is the definition of a rational number?

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A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

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What is the slope-intercept form of a linear equation?

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How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

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What does it mean for a line to be vertical?

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What does it mean for a line to be horizontal?

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Front

What is the definition of an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, greater than or equal to, or less than or equal to the other.

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What is the solution set of an inequality?

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The solution set of an inequality is the set of all values that satisfy the inequality.

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How do you graph a linear inequality?

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To graph a linear inequality, first graph the corresponding linear equation as a dashed or solid line, then shade the region that satisfies the inequality.

Front

What is the difference between a solid line and a dashed line in graphing inequalities?

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