Project 3: World Population Quadratic: y = a ⋅ x 2 + b ⋅ x + c Year
1900
1910
1920
1930
1940
1950
1960
1970
1980
1990
2000
2010
Population (millions)
1,625
1,733
1,813
1,987
2,213
2,516
3,019
3,693
4,450
5,333
6,081
6,852
Equation: ___________________________ What does x represent? What does y represent? Answer the questions using your best equation. 1. Predict the population for this year?
2.
Predict the population for next year?
3.
Predict the population for the year 2020?
4.
Predict the population for the year 2025?
5.
When will the population double it’s present population?
6.
Find the average rate of change from this year to next year. (slope)
7.
Find the average rate of change from this year to 2020. (slope)
8.
Find the average rate of change from this year to 2025. (slope)
Proj 3 World Population questions.pdf
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