Determine whether each of the following points is a solution to the given system. Justify your answer. a) (-10,-1) y= 1/2x+4, y=4x+30
b) (2, 3/2) y= 8-x/4, y= 5/4x-1

Find the slope of the line passing through a pair of points

How to simply and write the answer n a whole number

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?