Question

Consider the set of related x and y values. {(8, 67), (5, 28), (7, 19), (3, 84)}. What value for x in another coordinate in this set would make it impossible for the set to represent a function? *

Answer 1

the answer is 3

because

A relationship between x and y represent a function, if for one value of x, there is only one value of y

we have

(3,84)

if in the data set would be other value of x=3 with a value of y different of 84, therefore the set not represent a function