SOLUTION: I just don't get the question???? Can't find an example in my book anywhere! Can you help me please? A linear regression between Y and X produced the following equation for th

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Question 380369: I just don't get the question???? Can't find an example in my book anywhere! Can you help me please?
A linear regression between Y and X produced the following equation for the least squares line:
y=2.15 - 3.2x
Which of the following statements concerning this relationship is true>
a. For every one unit increase in X, Y increases 3.2 units
b. For every one unit increase in Y, X decreases 3.2 units
c. For every one unit increase in X, Y decreases 3.2 units
d. For every one unit increase in Y, X increases 3.2 units
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
c. For every one unit increase in X, Y decreases 3.2 units
(This is just a wording of the slope value of the line.)