5 What are the slope and y-intercept of the linear function graphed to the left? 4 slope: -2; y-intercept: 2 slope: - 1 2 ; intercept: 1 slope : -intercept : 2 1/2 slope: 2 y-intercept : 1 3 2 5 -2 -3

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?