![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
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 ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9da293aca57864e2dfbadb2571411a26.png\")
dollars.
The cost of parking for third hour is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7ff66f0817f6d9b76e40dbc2dc6e8dbf.png\")
dollars, and so on.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The situation represents the step function.