Question 1(Multiple Choice Worth 2 points)
(Linear Models MC)
The scatter plot shows the time a swimmer spends practicing and the number of meets won.
A scatter plot titled Swim Meets has x-axis labeled Practice (in hours) and y-axis labeled Meets Won and contains ordered pairs 1,3 and 2,5 and 3,4 and 3,7 and 4,6 and 5,4 and 5,5 and 6,7 and 7,5 and 8,8 and 9,6 and 10,8. A line of fit is drawn through ordered pairs 1,4 and 4,5.
Use the line of fit, Å· = 0.335x + 3.655, to predict how many meets are won if the swimmer practices for 25 hours next week. Explain whether this is a valid prediction.
12.03 meets; this is valid because it is a reasonable prediction
12.03 meets; this is not a valid prediction because the extrapolated value is not reasonable
63.72 meets; this is not a valid prediction because the extrapolated value is not reasonable
63.72 meets; this is valid because it is a reasonable prediction
