Algebra 2 (Reg), Semester 1 Final Exam Review #1

Front

What is a function?

Back

A function is a relation that assigns exactly one output for each input. In a mapping diagram, a function is represented if no input is mapped to more than one output.

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What does it mean when an equation has no solution?

Back

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How do you express a range of values in interval notation?

Back

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What is the difference between closed and open intervals?

Back

A closed interval includes its endpoints, denoted by brackets [ ], while an open interval does not include its endpoints, denoted by parentheses ( ).

Front

How do you simplify a radical expression?

Back

Front

What is interval notation for the set of all real numbers greater than 6?

Back

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Back

Front

Back

Front

How do you determine if a mapping diagram represents a function?

Back

A mapping diagram represents a function if each input (x-value) is connected to exactly one output (y-value). If any input is connected to more than one output, it is not a function.

Front

What is the significance of the absolute value in equations?

Back

The absolute value of a number represents its distance from zero on the number line, regardless of direction. It is always non-negative.