The table of values represents a linear function and shows the number of miles on the odometer of Brian’s moped since he started riding it. What is Brian’s speed? Miles on the Odometer of Brian’s Moped Number of Minutes Brian Has Been Riding Moped 0 4 8 12 16 Number of Miles Traveled 3 point 2 5 4 point 2 5 5 point 2 5 6 point 2 5 7 point 2 5
Answer
A
3 point 2 5 miles per minute
B
4 miles per minute
C
1 mile per minute
D
0 point 2 5 miles per minute
Explanation
Brian’s speed is the change in miles traveled divided by the change in minutes. From 0 to 4 minutes, the miles traveled increase from 3.25 to 4.25, a gain of 1 mile in 4 minutes. So his speed is 1 ÷ 4 = 0.25 mile per minute, which is choice D.
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