Question

use the graph on the right to answer the following questions.
a. estimate the pressure at altitudes of 9,000 feet, 18,000 feet, and 29,000 feet.
b. estimate the altitudes at which the pressure is 23, 19, and 11 inches of mercury.
c. estimating beyond the boundaries of the graph, at what altitude do you think the atmospheric pressure reaches 5 inches of mercury? is there an altitude at which the pressure is exactly zero? explain your reasoning.
a. the pressure at 9,000 feet is inches of mercury, the pressure at 18,000 feet is inches of mercury, and the pressure at 29,000 feet is inches of mercury. (round to the nearest integer as needed.)

Explanation:

Step1: Locate 9000 - feet on x - axis

Find the point on the graph corresponding to 9000 feet on the altitude (x - axis) and read the pressure (y - axis) value. It appears to be around 21 inches of mercury.

Step2: Locate 18000 - feet on x - axis

Find the point on the graph corresponding to 18000 feet on the altitude (x - axis) and read the pressure (y - axis) value. It seems to be around 14 inches of mercury.

Step3: Locate 29000 - feet on x - axis

Find the point on the graph corresponding to 29000 feet on the altitude (x - axis) and read the pressure (y - axis) value. It looks like about 10 inches of mercury.

Answer:

The pressure at 9,000 feet is 21 inches of mercury, the pressure at 18,000 feet is 14 inches of mercury, and the pressure at 29,000 feet is 10 inches of mercury.