Question

Functions A and B give the population of City A and City B, respectively, t years since 1990 In each function, population is meas red in millions Here are the graphs of the two functions. Which function value is greater A(4) or B(4) ? 2. Are there one or more values of t at which the equation A(t) = B(t) is true? If so, which one or which ones? 3. Identity at least two values of t at which the inequality B(t) < A(t) is true

Answer 1

1) B(4) is greater because the point in the graph of B is higher

2) just one value and it is when the time is 6 years

3) for t=9 and t=8 follows the condition that B(t)