\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
A rule \(h\) is defined by \(\Fonction{h}{\mathbb{Z}}{\mathbb{R}}{x}{\sqrt{x}}\).
  1. State the domain and codomain of \(h\).
  2. Explain why this rule does not define a valid function.

Capture an image of your work. AI teacher feedback takes approximately 10 seconds.