The graph shows the distance, y, in miles, of a bird from its nest over a certain amount of time, x, in minutes. Based on the graph, what is the initial value of the graph and what does it represent?

0.5 mile per minute; it represents the speed of the bird.

0.5 mile; it represents the original distance of the bird from its nest.

10 miles; it represents the original distance of the bird from its nest.

10 miles per minute; it represents the speed of the bird.