Concept explainers
(a)
Write a set of ordered pairs for the data.
(a)
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)
Graph the data
(b)
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)
Find the relationship a proportional relationship.
(c)
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.
Chapter 8 Solutions
Glencoe Math Accelerated, Student Edition
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