A diver practicing swimming was 3 m below the water surface in an ocean she moved down 5 m she moved down by 2 m farther use a number line to work out her final position
Starting at 3 m below the water surface, if the diver moves down by 5 m, her position will be -3 - 5 = -8 m below the water surface.
If she then moves down by 2 m farther, her final position will be -8 - 2 = -10 m below the water surface.
Using a number line, her final position can be represented as:
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 ...
I have marked the position -10 on the number line to represent her final position.