Find the equation y = ?0 + ?1x of the least-squares line that best fits the given data points.Data points: (2, 1), (3, 2), (7, 3), (8, 1)X = 
, y = 
A. y = - 
+ 
x
B. y = 
+ 
x
C. y = 
- 
x
D. y = - 
+ 
x
Answer: B
Mathematics
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Evaluate the integral.
A. ln 
+ C
B. 9 sin x + C
C. 9 ln 
+ C
D. 
ln 
+ C
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Solve the problem.
The Montgomerys borrowed $86,000 at 7.50% for 30 years to purchase a house. Find the total interest the Montomerys will pay if they pay the loan on schedule.
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Answer the question.The points (-3, 3), (0, 6), ( 2, -2), and ( 5, 1) are the vertices of a quadrilateral. Is the quadrilateral a rectangle?
A. Yes B. No
Mathematics