Identifying Quadratic Inequalities - Algebraic Expressions, Equations, and Inequalities - Precalculus

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Identifying Quadratic Inequalities

Which of the following is NOT a quadratic inequality?

A

y = x^2 + 1

B

y ≥ x^2 -3x

C

y < x^2 + 1

D

y ≤ x^2 + 3x

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