Final answer:
The viable points and their values in the table relating time and elevation for Rory's descent from the cabin to the water's edge. the viable points and their values are (0, 300), (10, 200), (20, 100), and (30, 0).
Step-by-step explanation:
The equation e = 300 - 10t represents Rory's average change in elevation over time. In this equation, e represents her elevation with regard to sea level in feet, and t represents the time in minutes since she left the cabin.
To find viable points and their values, we can assign different values to t and calculate the corresponding values of e. Here is a table showing the relationship between t and e:
t (minutes)e (feet)03001020020100300
So, the viable points and their values are (0, 300), (10, 200), (20, 100), and (30, 0).