Question

State the relation of the numbers displayed in column x and column y.
x y
1 5
2 7
3 9

Answer 1

one-to-one relation..

Answer 2

Look at what the y values are doing for each value of x!

Lets see the relationship between X and Y

y = x + 4 + x - 1

Answer 3

simplified down to y = 2x + 3

So whats happening here is that for every input of x values, Y is equal to 2 times the amount of X plus 3. That is the relationship.