A power function is a single-term function that contains a variable at its base and a constant for its exponent.

A power function is a function whose (output) value is the same for every input value.

A power function is a function that involves only non-negative integer powers or only positive integer exponents of a variable in an equation like the quadratic equation, cubic equation, etc

f(x)=lg(x)

f(x)=a^x

f(x)=kx^n

even

neither

odd