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Mathematics 7 Online
OpenStudy (anonymous):

1. Ralph and his friends buy tickets every year to go to the fair because they like to play the fair games. The graph below shows a line of best fit for the amount of money they spent going to the fair as a function of the number of games they each played. The equation for the line of best fit is y = 0.5x + 4.5. What does the y-intercept of this line represent?

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