Let x be the number of hours and y the total cost.
Since each hour cost $2 then the cost for x hours is:
[tex]2x[/tex]
To this we have to add the parking cost, therefore the total cost is:
[tex]y=2x+5[/tex]
Now, to choose the correct graph we need to remember that for each hour the cost increments two dollar and that the line need to begin at y=5 (the parking cost), therefore the correct graph is the last option.
