Question

The graph represents the atmospheric pressure, in pounds per square inch, as a function of altitude in miles above sea level.

Which statements accurately reflect this relationship?
Select each correct answer.
 


The atmospheric pressure gets close to
14 
lb/ft
2
as the altitude continues to increase.

The atmospheric pressure is
14 
lb/in
2
at sea level.

As the altitude approaches sea level, the atmospheric pressure increases.

As the altitude increases, the atmospheric pressure increases.

Answer 1

The answer is B and C. The atmospheric pressure is 14lb/in2 and As the altitude approaches sea level, the atmospheric pressure increases.

Answer 2

The correct options are 2 and 3.

Explanation:

In the given graph y-axis represents the atmospheric pressure, in pounds per square inch and x-axis represents altitude in miles above sea level.

From the given graph it is noticed that as altitude (value of x) increases, the atmospheric pressure (value of y) decreases and as altitude (value of x) decreases, the atmospheric pressure (value of y) increases.

At sea level, the value of x is 0.

The y-intercept of the graph is 14.

Therefore The atmospheric pressure is
`14lb/in^2` at sea level. Option 2 is correct.

As the altitude (value of x) approaches sea level (x=0), the atmospheric pressure increases.

Therefore the correct options are 2 and 3.