Question

What is the rule in this table of values! Please explain! I am desperate!

Answer 1

It is not proportional

Answer 2

Answer: Multiply x by (x+1) to get y

Explanation:

Take a value x from the table and multiply it by (x+1) - this will give you the value y. In function notation:

$y = x (x +1) = x^2 + x$

which is a quadratic function in x.