the system of inequalities in the graph represents the change in an account, y, depending on the days delinquent, x.
on a coordinate plane, 2 dashed straight lines are shown. the first line has a positive slope and goes through (negative 2, negative 2) and (0, 0). everything to the right of the line is shaded. the second line has a negative slope and goes through (negative 2, 2) and (0, 0). everything to the left of the line is shaded.

which symbol could be written in both circles in order to represent this system algebraically?

y circle x

y circle –x
≤
≥
<
>

Which graph represents the function g(x) = |x + 4| + 2?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

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?