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Use the graph to find the indicated function value.
-y = f(x) . Find f(4)
Hallucinogens
Substances that induce alterations in perception, mood, and thought, often resulting in visual or auditory hallucinations.
CNS
The central nervous system, consisting of the brain and spinal cord, responsible for processing and sending out nerve signals.
Serotonin
A neurotransmitter involved in many functions including mood regulation, appetite, and sleep.
Illicit Drug
A substance whose production, sale, or use is prohibited by law.
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