Question

the vertical change for this graph is the change in cost. what do we know about the change in cost for this situation? every time the x - value increases by 1 mile, the y - value increases by $2.50. the cost, or the y - coordinate, is always $2.50.

Explanation:

The graph shows a horizontal line at $y=2.50$, meaning regardless of the distance traveled (x-value), the cost (y-value) stays constant at $2.50. The first statement claims the cost increases with distance, which contradicts the flat line.

Answer:

The cost, or the y-coordinate, is always $2.50.