Find the Y-Intercept of the Polynomial Function $$f ( x ) = - x ^ { 2 } ( x + 8 ) \left( x ^ { 2 } - 1 \right)$$

question 212

Multiple Choice

Find the y-intercept of the polynomial function.
- $$f ( x ) = - x ^ { 2 } ( x + 8 ) \left( x ^ { 2 } - 1 \right)$$

• A) \(- 8\)
• B) 8
• C) \(- 1\)
• D) 0

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Definitions:

External Validity

How much the conclusions drawn from a research can be seen as applicable across various scenarios and to other populations.

Longitudinal Study

A research method that involves repeated observations of the same variables (such as people) over short or long periods of time, often years or decades.

Demographically Similar

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Research design involving the intensive study of a single subject to explore outcomes, behaviors, or responses to interventions over time.