Question

create on number line
(i) $\sqrt{4-5}$
(ii) $5-6$

Answer 1

(i) $\sqrt{4-5}=\sqrt{-1}i$

This is a imaginary number we cannot represent this on number line

(ii) $5-6=-1$ [Ref. image]

$-1$ value can, be represented on left side of the number line as shown.