The scatter plot shows the average starting salaries for graduates of 8 universities along with the annual tuition costs for those universities.
Average Starting Salaries
ū851
80
75
•
Starting Salary
(thousands of dollars)
-Trend Line
45
40
41 42 43 44 45 46
Annual Tuition Cost
(thousands of dollars)
The trend line marked on the plot best models the relationship between average starting salary (s) and tuition costs (c), both in
thousands of dollars, and is described by this equation:
s = 0.900 + 26.4
What does the slope of the trend line represent?
a $27,300 increase in salary per $1,000 increase in annual tuition costs
a base salary of $26,400
Ооос
a $900 increase in salary per $1,000 increase in annual tuition costs
a base salary of $27,300
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