Question

In a function, y varies inversely with x. The constant of variation is 4. Which table could represent the function?

Answer 1

I don't see a table but I can give you the means to answer it yourself.  The inverse function is represented by this: $y= \frac{k}{x}$ where k is your constant.  You are given a k value of 4.  If you solve this for k then you will get xy=4.  In your tables, multiply your x value by your y value within your coordinate points and if you get a product of 4 each time you multiply x by y, then that table is your answer.