Multiple Choice
Suppose the percent of U.S. high school seniors from 1975 to 2001 who used marijuana can be modeled by , where x is the number of years past 1975. What is the slope of the graph of this function?
A) - 0.288
B) 0.177
C) - 2.879
D) - 0.177
E) 28.791
Correct Answer:

Verified
Correct Answer:
Verified
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