Which of the following lists of ordered pairs is a function?

A

Step-by-step explanation:

A function has the first number in each pair is not the same, For example, if you had (1,2) (1,3) that is not a function because the first numbers are the same.

The only pairs of functions that satisfy this is option A.

Hope this helps plz hit the crown :D

A

Step-by-step explanation:

A function is there is only one output to a input. In this case you can notice it very quickly if you look at the x spot (x,y) if there is a repeating number in that spot you can tell its not a function.

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.