How would i create a real life example that can be modeled by the expression - 2*4

The weather was - 2 degrees outside and it got four times colder. What is the temperature now? (-8 degrees)

Bob is diving

he is at a depth of 2 meters below sea level

sam goes down 4 times as deep

how deep is sam

depth is a negative thing because you are 2 below 0 or - 2

then we mutiply - 2 by 4 to get 4 times to get - 8 meters below sea level