Understanding Quadratic Discriminants

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For the function above, is the discriminant positive, negative, or zero?

• Positive

• Negative

• Zero

• Not Sure

• Two distinct real roots

• One real root

• Two complex roots

• No roots

• No real roots

• Two distinct real roots

• One real root

• Two complex roots

• No roots

• No real roots

• Two distinct real roots

• One real root

• Two complex roots

• No roots

• No real roots