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Part 1
The accompanying line graph shows how the average salary for baseball players in a certain league has increased over a​ 12-year period. Notice the average salary is given for​ odd-numbered years only. Also note that the left scale does not start at zero. Which​ 2-year period(s) had the smallest​ increase?
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Question content area top right
Part 1
2007
2019
2.5
3
3.5
4
4.5
Year
Average Salary ($ millions)

A coordinate system has a horizontal x-axis labeled Year from 2007 to 2019 in increments of 2 and a vertical axis labeled Average Salary in millions of dollars from 2.5 to 4.5 in increments of 0.1. The graph consists of 7 plotted points connected by line segments from left to right. The coordinates of the plotted points are at (2007, 2.6), (2009, 2.8), (2011, 3.2), (2013, 3.5), (2015, 3.6), (2017, 4.3), and (2019, 4.2).
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Part 1
Select all that apply.
A.2007 minus 2009
2007 minus 2009
B.2011 minus 2013
2011 minus 2013
C.2009 minus 2011
2009 minus 2011
D.2015 minus 2017
2015 minus 2017
E.2013 minus 2015
2013 minus 2015

1 answer

To determine which 2-year period had the smallest increase in the average salary for baseball players, we need to compute the increases for each period based on the provided data points.

From the given data points:
- (2007, 2.6)
- (2009, 2.8)
- (2011, 3.2)
- (2013, 3.5)
- (2015, 3.6)
- (2017, 4.3)
- (2019, 4.2)

Let's calculate the increase in average salary for each 2-year period:
1. From 2007 to 2009:
Increase = 2.8 - 2.6 = 0.2 million dollars
2. From 2009 to 2011:
Increase = 3.2 - 2.8 = 0.4 million dollars
3. From 2011 to 2013:
Increase = 3.5 - 3.2 = 0.3 million dollars
4. From 2013 to 2015:
Increase = 3.6 - 3.5 = 0.1 million dollars
5. From 2015 to 2017:
Increase = 4.3 - 3.6 = 0.7 million dollars
6. From 2017 to 2019:
Decrease = 4.2 - 4.3 = -0.1 million dollars (Note: This is actually a decrease, not an increase)

The smallest increase (or rather the smallest change) is from 2017 to 2019; however, since the question asks for the smallest increase, we consider positive changes only.

The smallest positive increase is from 2013 to 2015:
- The increase is 0.1 million dollars.

Therefore, the 2-year period with the smallest increase is from 2013 to 2015.

Select the correct answer(s):
E. 2013 minus 2015
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