Alg 2- Midterm Exam (7th 24-25)

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

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Front

Express the set { x | -9 < x ≤ -4 } in interval notation.

Back

The interval notation is (-9, -4].

Front

Write the inequality -4 ≤ x < -1 in interval notation.

Back

The interval notation is [-4, -1).

Front

What is the definition of a quadratic equation?

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Front

What is the discriminant of a quadratic equation?

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Front

How do you find the vertex of a quadratic function?

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Front

What is interval notation?

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Interval notation is a way of writing subsets of the real number line using intervals, such as (a, b) or [a, b].

Front

What does the notation (a, b) mean in interval notation?

Back

The notation (a, b) means that a and b are not included in the interval (open interval).