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

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:

a = not viable

b = 265

c = 0

Got it right on edg. 2020, hope this helped! :)

Answer 2

Answer with explanation:

If we draw a Vertical number line, Where Sea level Represents=0,

Point on number line where Rory is standing = +300 feet

Equation of average change in elevation over time is given by equation:

e = 300 - 10 t

So, when t=0, e=300

and, when e=0 , gives ,

10 t= 300

→→Dividing both sides by 10

t =30

→Average change

`=(e_(2)-e_(1))/(t_(2)-t_(1))`

→Rate of change

`=(300-0)/(0-10)=-30{(feet)/(minute)}`

Viable points →

e (feet) 300 0

t (minutes) 0 30