Use the Discriminant to Determine the Number and Type of Solutions

question 58

Multiple Choice

Use the discriminant to determine the number and type of solutions of the equation.
- $$x ^ { 2 } - 4 x - 1 = 0$$

• A) One real solution
• B) Two complex but not real solutions
• C) Two real solutions

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Definitions:

QRS Complex

Principal deflection in the electrocardiogram, representing ventricular depolarization.

T Wave

Deflection in an electrocardiogram following the QRS complex, representing ventricular repolarization.

Repolarization

The process of restoring the resting negative charge inside a neuron or muscle cell after depolarization.

Action Potentials

The process by which neurons transmit electrical impulses along their axons.