Question

The table shows the outputs y for different inputs x:




Input
(x)
2 4 6 8


Output
(y)
1 2 3 4


Part A: Do the data in this table represent a function? Justify your answer. (3 points)
Part B: Compare the data in the table with the relation f(x) = 3x – 10. Which relation has a greater value when x = 8? (2 points)
Part C: Using the relation in Part B, what is the value of x if f(x) = 80? (5 points)

Answer 1

Ok so what makes something a function?

Answer 2

@DJJo Idk that's why I am asking please help

Answer 3

yes it represents a function as long as there is an x and y value it does (x,y)

Answer 4

Ok, so what makes this a function is that there is one domain for each range and there can only be one domain per range like this:


and you can't have a domain who has 2 ranges:


does that make sense?