Representations of a Linear Function

The table below shows the total cost of group admission and planetarium tickets for groups of 10, 15, 20, and 25 students. Which equation represents the data in the table?

• y = 4x + 60

• y = 8x + 20

• y = 9x + 10

• y = 40x + 60

Monica collects 150 eggs. After she sells x dozen of them, the equation y = 150 - 12x represents the number of eggs she has left. Which table below does not match this linear function?

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 A company estimates its total monthly expenses using the equation y = 2,000x + 3,000. Which of these graphs shows this relationship?

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The graph below represents the number of pint-sized containers that Luis can fill by using x pounds of raspberries. Which equation is represented by the graph?

Johnny spent 25 hours making kites. The table shows how many kites he had after 8 hours and 12 hours. Which equation is represented by the table?

The graph shows how the amount of grain in storage in a certain country is changing over time. Which equation describes the linear function graphed?

Amy could do only 4 crunches before she began a training program. At the end of each day of training, she was able to do 3 more crunches than the day before. Which table shows how many pushups Amy could do after 5, 10, 15, 20 days of training?

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The table below shows the number of defective batteries identified in different shipments. Which linear equation shows the relationship between the total number of batteries in the shipment and the number of defective batteries?

• d = 100n

• d = 6n

• d = 0.06n

• d = 0.03n

Which graph models the equation -2x + y = -4?

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What is the equation for the table?