Question 3(multiple choice worth 2 points)

(03.06 mc)

triangle abc with segment bd where point d is between points c and a, bc equals x, bd equals y, cd equals w, da equals z, and ba equals v

what expression represents the value of y?

y equals the square root of quantity x times v end quantity
y equals the square root of quantity w times z end quantity
y equals the square root of quantity w times the sum of w plus z end quantity
y equals the square root of quantity z times the sum of w plus z end quantity

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?