# Chapter 1 - Precalculus Review - 1.3 The Basic Classes of Functions - Exercises - Page 22: 1

$\{x: x \geq 0\}$

#### Work Step by Step

Since $x^{1/4}$ is the $4^{th}$ root of $x$ and it is impossible to take a number to the fourth power and produce a negative result, $x$ must be positive and hence the domain of the function must be: $0< x < \infty$.

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