Which table represents a linear function

Table in the upper left side.

Step-by-step explanation:

A linear function has a constant slope, which means that a change in x leads to a constant change in y. The table in the upper left side represents a linear 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.