Which situation results in a change that could be modeled by a negative number?
a change in elevation from 492 feet to 783 feet
a change in elevation from –12 feet to 123 feet
a change in elevation from sea level to 87 feet
a change in elevation from 632 feet to 312 feet
The change from 632 feet to 312 feet because there is a decrease. When there is a decrease it is modeled by a negative number. All the others show positive increase.
