A scatterplot is made of a city's population over time. The equation of the line of best fit is = 629t + 150,000 where p is the city's predicted population size and t is the number of years since
2000. What is the meaning of the slope of this line?
(A) In 2000, the city's population was about 629 people.
(B) In 2000, the city's population was about 150,000 people.
(C) The city's population increases by about 629 people each year.
(D) The city's population increases by about 150,000 people each year.