Answer and Explanation:
When a boat is moving at a constant speed, the distance-time graph would be a straight line. Here's how you can draw a distance-time graph for a boat moving at a constant speed:
1. Label the x-axis as "Time" and the y-axis as "Distance."
2. Choose a scale for each axis, for example, let 1 cm represent 1 unit of time (e.g., 1 minute) on the x-axis and 1 cm represent 10 units of distance (e.g., 10 meters) on the y-axis. The scale can vary depending on the values you're working with.
3. Mark a point at the origin (0, 0) to represent the starting point of the boat.
4. Determine the speed of the boat in units of distance per unit of time (e.g., meters per second or kilometers per hour).
5. Using the speed, draw a straight line on the graph that starts at the origin and has a slope representing the speed. For example, if the boat is moving at a constant speed of 10 meters per second, draw a line that goes up 10 units of distance (e.g., 10 cm) for every 1 unit of time (e.g., 1 cm) on the x-axis.
6. Continue the line as far as needed to represent the time interval you're interested in or until you reach a specific endpoint.
Remember, the slope of the line represents the speed of the boat, and the steepness of the line indicates how fast the boat is moving. A steeper line means a faster speed, while a shallower line indicates a slower speed.
This is a basic representation of a distance-time graph for a boat moving at a constant speed. Keep in mind that in real-life situations, the graph might have some variations due to changes in speed or other factors.