Before I begin I just want to say anything underlined (e.g. L) is subscript and anyting with ^ infront of it means its a power.
(A) In 1988 number of reported new cases of males with AIDS in a country was 27,049. In 1989 the number of new cases reported was 29,549 males.
(i) If the rate of change in the number of new cases stays constant, find a linear function of the form AL(t) = mt + c that would model the number AL of reprted new cases of males with AIDS per year t, where t is the number of years after 1988.
(ii)If the number of new cases instead reflects a constant percentage increase, find an exponential function of the form AE(t) = A0(a)^t that would similarly model the number of reported new cases of male with AIDS.
(iii)In 1992 the actual number of reported new cases of males with AIDS was 38917. Which model best predicts the growth in AIDS according to this data?
(B) In 1990, the number of families living below the poverty line was 33,585,000 families. By 1991, the number had increased 6%.
(i) Write a function of the form P(t) = P0a^t to model this growth, where P(t) is the population t years after 1990.
(ii) How many families will be living below the poverty line now (2007) according to this model?
(iii) When will the number of families living below the poverty line reach 1 billion if the growth continues at 6%?
Someone please help me...