Answer:
Step-by-step explanation:
The rate of change of depth is given as 2 ft/s which is constant.
Let depth be represented by y.
At time t = 0, depth is -80 feet.
At any given time t, depth will be y.
Hence, rate of change of depth can be written as:
[tex]\frac{y-y_{0} }{t-t_{0} } = 2[/tex]
[tex]\frac{y-(-80)}{t}=2[/tex]
∴y = 2*t - 80
This equation describes her depth when she begins her ascent
