Does the equation below represent a relation, a function, bath a relation and a function, or neither a relation nor a function y = 32 - 9s + 20
JA
neither a relation nor a function
B.
both a relation and a function
2 с.
function only
D. relation only

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?