Question

|1|, |-4|, |-3|, |2|

Answer 1

|1| = 1

|-4| = 4

|-3| = 3

|2| = 2

Explanation:

The absolute value function is defined by

`|x|=\begin{cases}x,&x\ge0\\-x,&x<0\end{cases}`

Since 1>0, we have |1| = 1.

Since -4<0, we have |-4| = -(-4) = 4.

Since -3<0, we have |-3| = -(-3) = 3.

Since 2>0, we have |2| = 2.