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A scuba diver at a depth of 80 ft begins her ascent to the ocean surface. Her rate of change in depth is 2 ft/s. Which equation represents her depth in feet t seconds after she begins her ascent?

User Kamil Lach
by
7.6k points

2 Answers

6 votes

Answer:

c

Explanation:

User Omri Shneor
by
8.4k points
4 votes

Answer:

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:


(y-y_(0) )/(t-t_(0) ) = 2


(y-(-80))/(t)=2

∴y = 2*t - 80

This equation describes her depth when she begins her ascent

User Gehad
by
8.5k points
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