Write a polynomial in standard form
that has leading coefficient of -2,
and the following roots are {-1, 2, 3).
0-2x3 + 8x2 - 2x - 12
2x3 + 8x2 - 2x - 12
-2x3 + 8x2 - 2x + 12
2x3 - 8x2 - 2x - 12

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?