Question 998598
Call the boiling point temperature, T.  It is a function of altitude, a.
We can then write a linear function as
T(a) = 100 - 3.5a
by using the two points (0, 100) and (2, 93).
For a = 8.85,
T(8.85) = 100 - (3.5)(8.85) = 69.025 degrees C