Chapter 8.3, Problem 42CCR

(a)

To determine

Write a set of ordered pairs for the data.

Answer to Problem 42CCR

Ordered Pair: (0, 14.7), (1, 10.2), (2, 6.4), (3, 4.3), (4, 2.7), (5, 1.6)

Explanation of Solution

Given:

The air pressure decreases as the distance from Earth increases. The table shows the air pressure for certain distances.

Air Pressure

Height(mile)	Pressure(lb/ sq inch)
0 (sea level)	14.7
1	10.2
2	6.4
3	4.3
4	2.7
5	1.6

Concept Used:

Write a set of ordered pairs for the data.

Ordered pair we can write in this way: (height, Pressure)

Calculation:

Ordered Pair: (0, 14.7), (1, 10.2), (2, 6.4), (3, 4.3), (4, 2.7), (5, 1.6)

Thus, Ordered Pair: (0, 14.7), (1, 10.2), (2, 6.4), (3, 4.3), (4, 2.7), (5, 1.6)

(b)

To determine

Graph the data

Answer to Problem 42CCR

Explanation of Solution

Given:

The air pressure decreases as the distance from Earth increases. The table shows the air pressure for certain distances.

Air Pressure

Height(mile)	Pressure(lb/ sq inch)
0 (sea level)	14.7
1	10.2
2	6.4
3	4.3
4	2.7
5	1.6

Concept Used:

Graph the data

Calculation:

Graph:

  

Thus,

(c)

To determine

Find the relationship a proportional relationship.

Answer to Problem 42CCR

No, the relationship is not proportional

Explanation of Solution

Given:

The air pressure decreases as the distance from Earth increases. The table shows the air pressure for certain distances.

Air Pressure

Height(mile)	Pressure(lb/ sq inch)
0 (sea level)	14.7
1	10.2
2	6.4
3	4.3
4	2.7
5	1.6

Is the relationship a proportional relationship? Why or why not?

Concept Used:

No, the relationship is not proportional, neither the differences are equal nor their ratios are equal.

Thus, no, the relationship is not proportional.