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4 cards from this section. Quick, good the night before a test.
What is a quadratic inequality used for?
Think about scenarios involving heights or costs.
How would you set up a quadratic inequality to find when a ball thrown into the air is above the ground?
Use h(t) ≥ 0 where h(t) is the height function.
Quadratic inequalities are used primarily to find what?
Think about inequalities in practical contexts.
True or False: Quadratic inequalities can be applied in both projectiles and financial analysis.
Recall the examples discussed.
If a parabolic arch supports a weight expressed by the inequality 2x^2 - 4x ≤ 16, determine the supportable range for 'x'.
Begin by rearranging and factoring the left side.
In a stock market analysis, a certain stock's value is modeled by the quadratic equation V(t) = -3t^2 + 15t + 3. Find the time intervals when the stock value is below 10.
Rearrange to standard quadratic form and factor or use the quadratic formula.
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