he wage gap iswomen's earnings as a percentage ofmen's. The data for the wage gap in a country are displayed as six points in the scatter plot on the right.

a. Use the two points whose coordinates are shown to write theslope-intercept form of an equation that models the wage gapy, x years after 1980.

b. Use the model from part(a) to predict the wage gap in 2015.

0

10

20

50

60

70

80

90

100

Yearsfrom1980

WageGap

(5,54.5)

(15,61.7)

A scatterplot has a horizontal axis labeled Years from 1980 from 0 to 25 in increments of 5 and a vertical axis labeled Wage Gap from 50 to 100 in increments of 5. Six points are plotted as follows: (0, 51.9), (5, 54.5), (10, 63.1), (15, 61.7), (20, 62.3), (25, 67.9). A line rises from left to right and passes through the plotted and labeled points (5, 54.5) and (15, 61.7). All coordinates are approximate.

a. Theslope-intercept form of the equation that models the wage gap is

y equals 0.72 x plus 50.9

y=0.72x+50.9.

(Simplify your answer. Use integers or decimals for any numbers in theequation.)

b. The wage gap in 2015 is predicted to be

76

76%.

(Round to the nearest integer asneeded.)