Which of the following describes the end behavior of the function f(x) = A + 3x3 - 2x + 7?
O A) As x—-, y to and as x— tc, y=+
B) As x-0, y too and as x— , y--
C) As x—-,y - and as x— to, y → --
D) As x—-0, y-- and as x—+co, y → +0

Find the solution of each of the following.

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

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?