Suburban Population. The following charts show the populations for two suburbs from 1980 to 1990, where x = 0 correspond to 1980, x = 2 correspond to 1982, and so on.
Year
x Suburb 1
y Year
x Suburb 2
y
0 12,690 0 23,112
2 12,071 2 23,893
4 13,463 4 24,674
6 13,867 6 25,455
8 14,283 8 26,236
10 14,711 10 27,017
How can I help you?
i. Suburb 2 data;
ii. y=390.5x + 23112;
iii. 34827;
iv. 1997
To determine the population growth for each suburb between 1980 and 1990, we can calculate the difference between the population at the end of the period (1990) and the population at the start of the period (1980).
For Suburb 1, the population in 1980 was 12,690 and the population in 1990 was 14,711. Therefore, the population growth for Suburb 1 is:
14,711 - 12,690 = 2,021
So, Suburb 1 experienced a population growth of 2,021 between 1980 and 1990.
For Suburb 2, the population in 1980 was 23,112 and the population in 1990 was 27,017. Therefore, the population growth for Suburb 2 is:
27,017 - 23,112 = 3,905
So, Suburb 2 experienced a population growth of 3,905 between 1980 and 1990.