Functions Quiz

What is the definition of function?

• Every output has only one input

• Inputs have different outputs every time

• Every input has only one output

• x-values and y-values

Which of the following is a function?

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This graph represents a linear function.

Select the equation represented by the graph.

This graph shows the sales of shoes in a store over time.

Based on the graph, determine whether each statement is true. Select True or False for each statement.

Groups:

(a) True

,

(b) False

• The sales of shoes increased between week 3 and 4.

• The sales of shoes remained the same between

  week 1 and week 2.

• The sale of shoes deceased between week 4 and 5.

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Paolo is an artist who draws comic strip panels. For each customer, he

determines his total price, in dollars, based on the total number of

comic strip panels the customer orders. He uses the graph shown to

determine the total price.

For each quantity described, indicate whether its value is less than 10,

equal to 10, or greater than 10.

Groups:

(a) Less than 10

,

(b) Greater than 10

• The average cost per panel (in dollars)

  when a customer orders 12 panels .

• The number of panels a customer can get for $100.

• The average cost per panel (in dollars)

  when a customer orders 4 panels .

• The cost (in dollars) to get a single panel.

Which of the following relations represent functions? Select ALL that apply.

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• (-15, 10), (-15, 5), (-10, -5), (-5, -10)

Which person will have more money left in their account after 13 months? Justify your answer.