Determine Whether the Graph Is That of a Function

question 50

Multiple Choice

Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts,
if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
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• A)function domain: all real numbers Range: Intercepts: (-3, 0), (0, 3), (1, 0)symmetry: none
• B)function domain: Range: all real numbers Intercepts: (-3, 0), (0, 3), (1, 0)symmetry: y-axis
• C)function domain: all real numbers Range: Intercepts: (0, -3), (3, 0), (0, 1)symmetry: none
• D)not a function

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Definitions:

Independent

Not influenced or controlled by others; in statistics, refers to variables that are not related or do not affect each other.

Marginal Probability

The probability of an event occurring, disregarding all other variables or outcomes in a probability distribution.

E(XY)

The expected value of the product of two random variables X and Y, indicating their joint mean over all pairs of outcomes.

Marginal Probability

The probability of an event occurring, regardless of the outcomes of other variables; it is calculated by summing the probabilities of the event across all values of the other variables.