Chapter R.4, Problem 88E

Median age of women at first marriage. In general, people in our society are marrying at a later age. The median age, $A\left(t\right),$ of women at first marriage can be approximated by

$A\left(t\right)=0.08t+19.7$, where t is the number of years after 1950. Thus, $A\left(0\right)$ is the median age of women at first marriage in 1950, $A\left(50\right)$ is the median age in 2000, and so on.

a. a) Find $A\left(0\right),A\left(1\right),A\left(10\right),A\left(30\right)$, and $A\left(50\right)$.

b. What was the median age of women at first marriage in 2008?

c. Graph $A\left(t\right)$.