Whích best describes the range of the function f(x) = } 6)* after it has been reflected over the x-axis? all real numbers
all real numbers less than 0
all real numbers greater than 0
O all real numbers less than or equal to 0

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?