Use the image to answer the question.
The population growth of a city since 1900 is represented by a linear model. Interpret the slope and the y-intercept.
(1 point)
A. For every year since 1900, the population grew by approximately 1,590. in 1900, the population was 20,000.
B. For every year since 1900, the population grew by approximately 300. In 1900, the population was 0.
C. For every 0.65 of a year since 1900, the population grew by approximately 1,000. In 1900, the population was 20,000.
D. For every year since 1900, the population grew by approximately 650. In 1900, the population was 20,000.
The correct answer is D. For every year since 1900, the population grew by approximately 650. In 1900, the population was 20,000.
This is because the slope of the linear model represents the rate of change of the population over time. In this case, the slope is approximately 650, indicating that the population grows by this amount every year since 1900.
The y-intercept, which is the value of the population when time is zero (in this case 1900), is approximately 20,000. This means that in 1900, the population was already at 20,000.