4.2.1 Graphing Functions − Practice
1. Use the x -values: 1, 2, 3, and 4 to write solutions of the equation y = 14 x + 8 as ordered pairs.
2. Use the graph of the linear function to find the value of y for x = –2.
3. The function y = 45 x describes the distance Jose has traveled in miles after x hours. Use the graph to estimate how many miles Jose will travel in 20 hours.
4. The function y = 6 x describes the distance in inches an electric toy train covers after x seconds. Use the graph to estimate how many inches the toy train will run in 8.4 seconds.
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