Question

Temperatures vary. They may rise above zero degrees or drop below zero degrees. Which situation could be used to model the sum of a rational number and its additive inverse with temperature changes?

A rise to 15°C, then a drop of 35°C
A rise to 25°C, then a drop of 35°C
A rise to 35°C, then a drop of 35°C
A rise to 45°C, then a drop of 35°C

Answer 1

A rise to 45°C, then a drop of 35°C

Explanation:

Answer 2

A rise to 45c then a drop of 35c