A.2A, A.3B, A.3C

Which inequality best represents the domain of the graph?

What is the range of the function shown in the graph?

The graph of a linear function is shown below. What is the domain and range of the function?

• Domain: all real numbersRange: all real numbers

The final cost in dollars to buy robotic kits for the Science Club can be found using the function , where n is the number of kits purchased. They want to purchase at least 8 kits but not more than 12 kits. What is the domain of the function for this situation? 

A contestant on a TV game show is given 20 free points to begin with. The contestant earns 10 points for each of 6 questions answered correctly. If n questions are answered correctly, the total number of points a contestant earns, t, can be represented by .

What is the range of the function?

• {20, 30, 40, 50, 60, 70, 80}

• {20, 40, 60, 80, 100, 120}

• {10, 20, 30, 40, 50, 60}

• {1, 2, 3, 4, 5, 6}

Tables are lined up end-to-end in a restaurant. The number of people who can be seated, y, is a linear function of the number of tables, x. A graph of the function passes through the points (3, 20) and (5, 32). What is the rate of change in y with respect to x, in people per table?

• 6

• 12

What is the rate of change of y with respect to x?

What is the rate of change? Record your answer in the box.