The boiling point of water at an elevation of 0 feet is 212 degrees Fahrenheit (°F). For every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°F.
Which of the following represents this relationship if b is the boiling point of water at an elevation of
E thousand feet?
A) E = 2b - 212
B) b = 2E - 212
C) E = -2b + 212
D) b = -2E + 212
To start, we know that the initial boiling point is 212 degrees F. For every 1 added to E, the boiling point decreases by 2. So, we havethe equation 212 - 2E or -2E + 212 = b or D).
