Provide an Appropriate Response $$\text { Does the curve } y = ( x + 3 ) ^ { 3 } \text { have any horizontal tangents? If so, where? Give reasons for your answer. }$$

question 258

Essay

Provide an appropriate response.
- $$\text { Does the curve } y = ( x + 3 ) ^ { 3 } \text { have any horizontal tangents? If so, where? Give reasons for your answer. }$$

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Definitions:

Face Validity

The degree to which a test or measure appears effective in terms of its stated aims to non-experts.

Unstructured Interview

An interviewing technique where the questions are not prearranged, allowing for a more spontaneous and flexible conversation.

Poor Validity

Refers to a lack of accuracy in measuring what a test or research study is designed to measure, questioning the results' trustworthiness.

Poor Reliability

Referring to the lack of consistency or dependability in the results of a test, measurement, or research finding.