5.1.1 Identifying Linear Functions − Practice (continued)
3. Which of the following sets of ordered pairs does not satisfy a linear function? ○ (2, 5), (4, 9), (6, 13), (7, 15), (9, 17) ○ (2, 5), (3, 7), (4, 9), (5, 11), (6, 13) ○ (2, 6), (4, 8), (6, 10), (8, 12), (10, 14) ○ (2, 6), (3, 9), (4, 12), (5, 15), (6, 18) 5. Tell whether the set of ordered pairs {(1, 2), (4, 10), (7, 17), (10, 22)} satisfies a linear function. Explain.
4. Tell whether the set of ordered pairs {(1, 6), (2, 9), (3, 12), (4, 15)} satisfies a linear function. Explain.
6. Identify the function that is not linear. ○2 y = 6 ○ y = 0
○ y = x /2 ○ y = x 2
8. The cost of a chessboard at Odyssey Gifts is $6. The function f ( x ) = 6 x gives the cost of x chessboards. Graph this equation and give its domain and range.
7. Is y = 5 x − 3 a linear function? If so, graph the function.
9. Thomas is a car salesman. He is paid a salary of $1600 per month plus $300 for each car that he sells. His salary can be modeled by the equation f ( x ) = 300 x + 1600 where x is the number of cars sold. Graph this equation and give its domain and range.
239
Made with FlippingBook Digital Publishing Software