Final answer:
James would have paid $250 less per month in rent if he had moved to San Francisco in 2014 instead of 2015, based on the median monthly rent equation provided.
Step-by-step explanation:
The question asks you to calculate the difference in median monthly rent for a one-bedroom apartment in San Francisco between 2014 and 2015. Given the equation C = 250t + 2,750, where C is the cost and t is the number of years after 2013, we can calculate the rent for 2014 and 2015.
For 2014, we substitute t = 1 (since 2014 is one year after 2013) to get:
C = 250(1) + 2,750 = $3,000
For 2015, we substitute t = 2 (since 2015 is two years after 2013) to get:
C = 250(2) + 2,750 = $3,250
So, the difference in median monthly rent that James would have paid if he moved in 2014 instead of 2015 is $3,250 - $3,000 = $250 less per month.