Answer
-4.5, 1.75, $\sqrt 4$, $14^1$
Work Step by Step
Mental math tells us that the only negative number, -4.5, is the smallest.
Mental math also tells us that $14^1$, which equals 14, is the largest.
Convert $\sqrt 4$ to a decimal to compare against 1.75.
$\sqrt 4=2$
$1.75\lt2$. Therefore $1.75\lt\sqrt 4$.
