Which set of ordered pairs does not represent a function?

a)
(0, 1), (2, 2), (4, 8), (-2, 7), (5, 8)

b)
(0, 1), (2, 2), (4, 8), (2, 7), (5, 8), (7, 9)

c)
(-3, 6), (2, 7), (0, 5), (1, 5), (4, 9), (5, 4)

d)
(-4, 2), (-3, 2), (-2, 2), (-1, 2), (0, 2), (1, 2)

Iam stuck on one problem. my mind is in absoloute vacation mode. i literallty just need to finish this to be done will give brainliest and all my points if i have to! 1- point free throw and 2- point feild goal. he made 35 shots, and scored 62 points how many of each shot did he make in 1 minute? (i already did the math. he made 8 1-point free throws and 27 2-point feild goals.) 1. write two equations for the problem. (i had a major brain fart.)

Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100

I’m stuck on this equation, anyone got the answer?