Proportional relationships: graphs

The cost to park in the downtown parking lot depends on the number of hours you park your car for. | | || - | :-: | :-:| :-:| :-: Hours parked | $1$ | $5$| $12$ Cost (in dollars) | $4$ | $10$ | $15$ **Plot the ordered pairs from the table.** [[☃ interactive-graph 1]] $$ **Is the cost of parking proportional to the number of hours parked?** [[☃ radio 1]]