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The scatter plot shows the winning times, in seconds, in a 50-meter race over eight consecutive years.
6
5
Winning
Time 3
2
0
1012
3
4 5 6 7
Time (Years)
8 9
Which of the following is an appropriate line of best fit?
Oŷ=-0.29x+5.67
Oŷ=0.29x+5.67
Oŷ=-0.45x+7.69
ý=0.45x+7.69