Use the Discriminant to Determine the Number and Type of Solutions

question 157

Multiple Choice

Use the discriminant to determine the number and type of solutions of the equation.
- $x ^ { 2 } - 3 x + 4 = 0$

• A) one real solution
• B) two complex but not real solutions
• C) two real solutions

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Definitions:

Normal

Referring to a bell-shaped distribution that is symmetric about its mean, used in statistics to describe well-behaved data sets.

Total Variation

The overall measure of the spread or dispersion of a set of data points from the mean or expected value.

SSR

Sum of Squares due to Regression, a measure used in statistical analysis to determine the variation explained by the independent variable(s) in a regression model.

SSE

Sum of Squared Errors; a measure of the discrepancy between the data and an estimation model, representing the total deviation of the response values from the fit values.