The cost of parking for first hour is 2 dollars.

The increasing value of charge for each additional hour is 1 dollar.

The total parking charge must be a add of 2 dollars, so the graph will be the graph of a step function.

If the time spent on parking is greater than 0 hours, but less than or equal to 1 hour, then the cost of parking is 2 dollars.

If the time is greater than 1 hour, but less than or equal to 2 hours, then the cost of parking is dollars.

The cost of parking for third hour is dollars, and so on.

Use the pattern of times and cost to make a table, where x is the number of hours and as C(x) is the total parking cost. \ \

To draw the step function follow the steps.

1. Draw a coordinate plane.

2. Plot the points on the coordinate plane.

3. Then sketch the line segments, connecting the every two points (one dot point and one circle point) with a smooth line.

Note: A dot means that the point is include in the graph and a circle means that the point is not included in the graph.

The situation represents the step function and its graph is