1. To represent a function all inputs need to only have ONE output. The inputs are the x values and the outputs are the y values. So, your answer would be all of the except the last 3.
The second equation has a slope of -2 and passes thru the point (3,-2)
C.
if it was wrong i’m very sorry
You probably made an error while writing the options.
The correct ans is: 
Entry Fee for the player is $11.
Player is charged $1 for each game played. So for x games played, the charges will be $ x.
So, total charges for x games played will be:
T(x) = 11 + x
Average Cost per game played = Total Cost/Total Games played
So,
Answer:
5/8
Step-by-step explanation:
1/4 = 2/8
2/8 + 3/8 = 5/8