Question

Suppose you and some friends are going to the movies. The amount of

money you spend for tickets varies directly with the number of people buying
tickets. If you spend $28 for four tickets, what is the constant of variation?

Answers:
1
4
7
28

Answer 1

money spent = number of people * price of 1 ticket (direst variation)

28 = 4 * price of a ticket

so price of one ticket = 28/4 = 7

Constant of variation is 7

we might write it as m = 7n

Explanation: