1. The problem states that the number of miles is always 10 times the number of hours. 2. This relationship can be expressed as a linear function: $$\text{miles} = 10 \times \text{hours}$$ or $$y = 10x$$ where $y$ is miles and $x$ is hours. 3. This means for every hour, the distance traveled increases by 10 miles. 4. The points given (1,10), (2,20), (3,30), and (4,40) all satisfy this equation, confirming the relationship. 5. The graph is a straight line passing through the origin with slope 10, showing a direct proportionality between time and distance. Final answer: $$y = 10x$$