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Solve the Problem y=2.503x+198.729y=2.503 x+198.729 in the Model x=0x=0 Corresponds To 1980,x=11980, x=1

Question 154

Multiple Choice

Solve the problem.
-The winning speeds for the Grayslake 250 race from 1980-1992 are approximated by the linear equation y=2.503x+198.729y=2.503 x+198.729 . In the model, x=0x=0 corresponds to 1980,x=11980, x=1 to 1981 , and so on. A portion of the graph of the equation is shown on the accompanying screen, along with the coordinates of a point on the line. How can this point be interpreted in the context of the model?
 Solve the problem. -The winning speeds for the Grayslake 250 race from 1980-1992 are approximated by the linear equation  y=2.503 x+198.729 . In the model,  x=0  corresponds to  1980, x=1  to 1981 , and so on. A portion of the graph of the equation is shown on the accompanying screen, along with the coordinates of a point on the line. How can this point be interpreted in the context of the model?   A)  It means that in the year 1990, the winning speed was approximately 224 miles per hour. B)  It means that the winning speed in the year 1990 will be the same as in the year 2203. C)  It means that 10 years from now, the winning speed will be approximately 224 miles per hour. D)  It means that the winning speed was between 10 and 224 miles per hour.


A) It means that in the year 1990, the winning speed was approximately 224 miles per hour.
B) It means that the winning speed in the year 1990 will be the same as in the year 2203.
C) It means that 10 years from now, the winning speed will be approximately 224 miles per hour.
D) It means that the winning speed was between 10 and 224 miles per hour.

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