1/4 hours = 1 mile walked

1/2 hour = 2 miles walked
3/4 hour = 4 miles walked
1 hour = 4 miles walked

It takes Julian 1/2 hour to walk 2 miles. He decides to start working in his spare time, but because he wants to make sure he has enough time to go a desired distance he created the data table. At which ratio does the constant of proportionality appear?

1/4,1
4,1
1,4
1,1/4

better get it right broski

Based on the given data, the constant of proportionality appears to be 1/2, since for every 1/2 hour, Julian walks 2 miles. Therefore, the correct answer is 1/2, which is not one of the given options.