The Critical Point for the Function Y = 3x²

question 1

Multiple Choice

The critical point for the function y = 3x² + 5x + 2 is at

• A)x = -5/6.
• B)x = 3/5.
• C)x = -3/2.
• D)There is no critical point.

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Definitions:

Systematic Variance

The portion of variation in an outcome that can be consistently explained by variables or factors in a study.

Error Variance

The variability in a set of data that cannot be attributed to the factors being studied, often resulting from measurement errors or other inconsistencies.

Dependent Sample Designs

Research designs involving comparisons of measurements from the same group of subjects under different conditions or at different times.

Extraneous Variables

Factors in a study that could undermine the internal validity by influencing the dependent variable in a way not intended by the research.