Your Task: Modeling Population Growth
Human population numbers are in constant flux.
Suppose a country has a population of 20 million
people at the start of one year and during the year
there are 600,000 births, 350,000 deaths, 100,000
immigrants, and 5,000 emigrants. You and your
classmates will determine the total population
at the end of the year and then model expected
change over a longer period.

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.

c. side angle side. u shares the same sides

correct answer is b. 27/8

step-by-step explanation: