Absolute value
|x +4| < 1

a.) -5 < y < -3
b.) -3 < y < 5
c.) -4 < y < 1
d.) 1 < y < 4

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.