Pre-Cal help !!! The polynomial of degree 3, P(2), has a root of multiplicity 2 at x = 3 and a root of multiplicity 1 at
x= - 3. The y-intercept is y = 16.2.
Find a formula for P(x).

P(x)=

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?