# Math Help - Classifying functions

1. ## Classifying functions

y = 4t^6 + t^4 - pi
Is this only a polynomial function and algebraic function?

y=x^9
Is this only a power function?

There are a few more choices:
Power function
Root function
Rational function
Trigonometric function
Exponential function
Logarithmic function

2. Remember that some of these are subsets of the others. If by "power function", you mean something like $ax^n$, then all "power functions" are polynomials. And all polynomials are rational functions (in the same way that all integers are rational numbers).