Name:    SOL A.7 AB RELATIONS MINI QUIZ

Multiple Choice
Identify the choice that best completes the statement or answers the question.

1.

Give the domain and range of the relation. Tell whether the relation is a function.
 a. D: –3 x 3; R: –2 y 2The relation is not a function. c. D: –3 x 3; R: –2 y 2The relation is a function. b. D: –2 x 2; R: –3 y 3The relation is not a function. d. D: –2 x 2; R: –3 y 3The relation is a function.

1.

Identify the domain and range. Then tell whether the relation is a function.

Essay

1.

The table shows the difference (in cents) of this year’s average monthly gas price and the previous year’s average monthly gas price. For example, in month 1, . So, the average gas price was 2 cents below the previous year’s gas price.

Part A: Explain how you know the table represents a function.
Part B: Graph the function and identify its domain and range.
Part C: What does a point in Quadrant IV mean in terms of this situation?

2.

Explain how to determine whether each item represents a function.  Then give an example of a function in that form.

Part A: a set of ordered pairs

Part B: a graph

Part C: an equation