Sketch a graph that could represent the dog's distance from the post, in feet, as a function of time, in seconds, since the owner left.

Each day the dog was 1.5 feet away from the post when the owner left.

Each day, 60 seconds after the owner left, the dog was 4 feet from the post.

In this scenario, the graph would be a straight line. The y-axis represents the distance of the dog from the post in feet, and the x-axis represents the time in seconds since the owner left.

At the start (time = 0 seconds), the dog is 1.5 feet away from the post. After 60 seconds (time = 60 seconds), the dog is 4 feet away from the post. Therefore, we can assume that the graph should pass through the points (0, 1.5) and (60, 4).

By joining these two points with a straight line, we can sketch the graph. The line will start at a height of 1.5 feet at zero seconds and gradually increase, passing through the coordinates (60, 4).

The graph would look like this:

```
^
| . (60, 4)
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
| /
|/
+--------------------------------
0 60 (time in seconds)
```