Question

In ordered pairs (1,1), (2,8), (3,27), (4,64), and (5,125) represent a function. What is a rule that represents this function

Answer 1

$\bf \begin{array}{ccll} x&y\\ \cline{1-2} 1&\stackrel{1^3}{1}\\\\ 2&\stackrel{2^3}{8}\\\\ 3&\stackrel{3^3}{27}\\\\ 4&\stackrel{4^3}{64}\\\\ 5&\stackrel{5^3}{125}\\\\ x&x^3 \end{array}~\hspace{7em}\boxed{y=x^3}$

Answer 2

It is a function because each x value only has one y value. None of the x values are repeating.

Hope this Helps!!