Solve the problem.
-A local race for charity has taken place since 1993. Using the actual speeds of the winners from 1993 through 1998, mathematicians obtained the formula y = 0.17x + 4.5, in which x represents the number of years after 1993 and y represents the winning speed in miles per hour. In what year is the winning speed predicted to be 6.2 mph?
A) 2003
B) 2002
C) 2004
D) 2005

Question

Quizplus · Accepted Answer

The winning speed is predicted to be 6.2 mph when x = (6.2 - 4.5) / 0.17 = 10. Therefore, the winning speed is predicted to be 6.2 mph in 1993 + 10 = 2003.

Solve the Problem. -A Local Race for Charity Has Taken Place Since 1993