Question

Rory is staying in a cabin on a hill 300 feet above sea level. She walks down the hill to the water’s edge. The equation of her average change in elevation over time is e = 300 – 10t, where t is the time in minutes since she left the cabin, and e is her elevation with regard to sea level. Which values are viable points, and what are their values in the table relating t and e?

Answer 1

While the change in elevation is e=300 the time would be t=30 minutes

Answer 2

Answer:

The viable points are : (0 , 30) and (300 , 0)

Step-by-step explanation:

The equation is e = 300 - 10t.

Now, elevation and time can't be negative.

⇒ t ≥ 0 and e ≥ 0

In the given equation, initially at time t = 0

elevation , e = 300

And at the top, when elevation = 0

Then, time t = 30 minutes

Hence, The viable points are : (0 , 30) and (300 , 0)