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The graph of a system of two linear equations has no solution. What is true about the lines?
The lines are perpendicular
The lines have the same slope, but diferent intercepts
c. The lines have the same intercept, but different slopes
There are on top of each other

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?