Chapter 8.1, Problem 71E

The graphs show changing altitudes toward gay marriage for the period from 2001 through 2015.

Source Pew Research Center

a. Write the slope-intercept equation of the line that models the percentage of the U.S. public that supported gay marriage. y, x years after 2001. Round the value of the slope. in, to one decimal place. If necessary. round the value of the y-intercept to the nearest whole number.

b. Write the slope-intercept equation of the line that models the percentage of the U.S. public that opposed gay marriage, y. x years after 2001. Round the value of the: slope, m, to one decimal place. If necessary, round the value of they-intercept to the nearest whole number.

c. Use the models front pans (a) and (b) to determine the year, to the nearest whole year, during which the