Question

population of individuals
which date range best shows when the population increased the most?
1975 - 1980
1970 - 1975
1980 - 1985

Explanation:

Step1: Analyze the slope of the line - segment

In a line - graph representing population over time, the steeper the line - segment (positive slope), the greater the increase in population.

Step2: Compare the slopes of different time - intervals

For the interval 1970 - 1975:
The line - segment from 1970 to 1975 has a very steep positive slope.
For the interval 1975 - 1980:
The line - segment from 1975 to 1980 has a negative slope (population is decreasing).
For the interval 1980 - 1985:
The line - segment from 1980 to 1985 has a relatively flat positive slope (small increase).

Answer:

1970 - 1975