Definition: A function of the form
y(x)=xk,
with k a non-negative integer is called a positive integer power function.
Remark: k is called the degree of the function.
Example: f(x)=x4 is an example of a positive integer power function.

y(x)=xk,
with k a non-negative integer is called a positive integer power function.
Remark: k is called the degree of the function.
Example: f(x)=x4 is an example of a positive integer power function.