The table gives the boiling point of water at different altitudes.
altitude (1,000 feet) boiling point of water (°f)
0 212.0
0.5 211.1
1.0 210.2
2.0 208.4
2.5 207.5
3.0 206.6
4.0 204.8
4.5 203.9
based on the table, the linear equation that represents the change in water’s boiling point for every 1,000-foot change in altitude has a slope of units.