To determine whether Partial should expect at least 10 bicyclists on the path when the temperature is 0 degrees Celsius, we can use the line of best fit equation provided:
\[ y = 8x + 15 \]
Here, \( x \) is the temperature in degrees Celsius, and \( y \) is the number of bicyclists.
If the temperature \( x = 0 \) degrees Celsius, we can substitute this value into the equation:
\[ y = 8(0) + 15 \] \[ y = 0 + 15 \] \[ y = 15 \]
Since the calculation shows that \( y = 15 \), Partial should expect at least 10 bicyclists on the path because 15 is greater than 10.
Conclusion:
Partial should expect at least 10 bicyclists on the path tomorrow if the temperature is 0 degrees Celsius, as the line of best fit predicts 15 bicyclists.