Determine if Injective (One to One) f(x)=|x+4|-|x-4|

$f (x) = | x + 4 | - | x - 4 |$

Step 1

Write $f (x) = | x + 4 | - | x - 4 |$ as an equation.

$y = | x + 4 | - | x - 4 |$

Step 2

A function is said to be injective or one-to-one if every y-value has only one corresponding x-value.

Not injective (Not One-to-One)

Step 3