1) The cost of 3-D movies tickets is $24 for 2 tickets, $36 for 3 tickets and $48 for 4 tickets.

a) Does this situation represent a proportional relationship? Why? Explain your thinking.

b) What is the constant of proportionality?

c) If the situation a proportional relationship, what equation could be used to represent it?

d) If you were to graph the situation, what would the graph look like?

e) What would be the cost of 7 tickets? Explain your thinking.