The Graph of an Exponential Function Is Given $f ( x ) = 2 ^ { - x }$

question 210

Multiple Choice

The graph of an exponential function is given. Select the function for the graph from the functions listed.
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• A) \(f ( x ) = 2 ^ { - x }\)
• B) \(f ( x ) = 2 ^ { x }\)
• C) \(f ( x ) = - 2 ^ { x }\)
• D) \(f ( x ) = - 2 ^ { - x }\)

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Definitions:

Absolute Threshold

The minimum intensity of a stimulus that one can detect 50% of the time, a concept used in sensory and perception research.

Reliable Detection

The ability to consistently identify or recognize true occurrences of a specific event or condition.

Difference Threshold

The smallest amount of difference in intensity between two stimuli that a person can detect half the time.

Reliable Detection

The ability to consistently and accurately identify or recognize the presence of a specific stimulus or condition.