Consider the function shown in the table. Which equation models the data in the table? x f(x) = 2x2 + 3x + 7 f(x) = 2x2 – 3x - 7 f(x) = 2x3 – 2x2 + 3x – 7 * f(x) = 2x3 – 2x2 – 3x + 7​

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?