Y = -3(2) +22
Y = -6 +22
Y = 16
Answer: (-3,4) and (9,20)
I think these two points will make the answer you have been looking for.
Y=15+5g
Y is the total cost in one month. 15 is the cost of the membership and 5 is the amount you paid to see the game. G is the variable for the amount of games. You multiple the g by 5 to get the total cost of games per a month that you went and saw. Than you add the base cost of 15 or your starting point. And you get your total cost.
