The Average Speed of a Vehicle on a Stretch of a Route

question 82

Multiple Choice

The average speed of a vehicle on a stretch of a route between 6 A.M. and 10 A.M. on a typical weekday is approximated by the function ​ , where is measured in miles per hour and is measured in hours, with corresponding to 6 A.M.
​
At what time of the morning commute is the traffic moving at the slowest rate? What is the average speed of a vehicle at that time?
​

• A) time = 7 A.M. ; average speed = 50 mph
• B) time = 7 A.M. ; average speed = 30 mph
• C) time = 7 A.M. ; average speed = 45 mph
• D) time = 7 A.M. ; average speed = 40 mph

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Definitions:

Freud

Sigmund Freud, an Austrian neurologist and the founder of psychoanalysis, a method for treating psychopathology through dialogue between a patient and a psychoanalyst.

Personality

Personality consists of the unique patterns of thoughts, feelings, and behaviors that make up an individual’s character and distinguish one person from another.

Allport

Gordon Allport, a pioneering psychologist known for his work on personality traits and the concept of the individual.

Behaviorism

A branch of psychology that focuses on observable behaviors and the ways they're learned, ignoring internal thought processes.