The median age of women at their first marriage has risen slowly since 1980 and can be modeled by y = 22.1 + 0.17x, where x is the number of years after 1980.
a. What was the median age of a first-time bride in 2002?
b. Graph the equation, using a window of [0, 25] for x and [0, 30] for y.
c. Predict the year during which the median age for first-time brides will be 28.
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