To write an equation relating the number of miles \( y \) to the time in minutes \( x \) for the day you ran the fastest (which is Wednesday), we first need to find the rate of speed for that run.
On Wednesday, you ran 2 miles in 16 minutes. To find the rate in miles per minute, we can calculate:
\[ \text{Rate} = \frac{\text{miles}}{\text{minutes}} = \frac{2 \text{ miles}}{16 \text{ minutes}} = \frac{1}{8} \text{ miles per minute} = 0.125 \text{ miles per minute} \]
Now, we can express \( y \) (miles) in terms of \( x \) (minutes) using the rate we calculated:
\[ y = 0.125x \]
Thus, the correct equation is:
y = 0.125x
This corresponds to the second response: \( y \text{ equals } 0.125x \).