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3 cards from this section. Quick, good the night before a test.
Solve 𝑥² + 2𝑥 − 15 > 0.
Factor the quadratic.
Solve 𝑥² − 4𝑥 + 4 ≤ 0.
Recognize it as a perfect square.
What is the standard form of a quadratic inequality?
Think about the types of inequalities you learned.
True or False: The solution set of a quadratic inequality can be represented using interval notation.
Recall how you can express solutions.
Solve for when the function h(t) = -5t² + 20t will be greater than 10.
Rearrange the inequality to standard form.
For the quadratic -x² + 4x - 3, find x where the function is negative and give range in interval notation.
Don't forget to check the behavior around the roots!
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