On Most Days,Rebecca Feels Depressed and Finds It Difficult to Get

question 218

Multiple Choice

On most days,Rebecca feels depressed and finds it difficult to get out of bed and go about her daily tasks.About once a month,however,she becomes extremely energized,sociable,and feels extremely happy.This high mood lasts for about a week,and then she goes back to feeling depressed.Based on her symptoms,Rebecca probably would be diagnosed with:

• A)bipolar disorder.
• B)multiple personality disorder.
• C)borderline personality disorder.
• D)dysthymia.

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Definitions:

Inverse Function

A function that reverses the effect of the original function, swapping the roles of inputs and outputs.

Function

A mathematical relationship in which each input value has exactly one output value.

Horizontal Line Test

A method used to determine if a function is injective or one-to-one, based on whether any horizontal line intersects the graph more than once.

One-to-One

A function for which every element of the range of the function corresponds to exactly one element of the domain.