Answer:
[tex]\sqrt{6}[/tex] is irrational
Step-by-step explanation:
A rational number can be expressed as a fraction of 2 whole numbers. An irrational number cant.
6 = [tex]\frac{6}{1}[/tex] --- rational
-1 = [tex]\frac{-1}{1}[/tex] --- rational
[tex]\sqrt{6}[/tex] = 2.449489... --- cant be expressed as a fraction, irrational
4 = [tex]\frac{4}{1}[/tex] --- rational