Which algebraic expressions are polynomials? check all that apply. 2x3 – startfraction 1 over x endfraction x3y – 3x2 + 6x y2 + 5y – startroot 3 endroot 2 – startroot 4 x endroot –xstartroot 6 endroot –one-thirdx3 – one-halfx2 + one-quarter

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

The customer price index(cpi), which measures the cost of a typical package of customer goods, was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely. use data points to find such a line and then estimate the requested quantities

If you apply the changes below to the linear parent function f(x)=x what is the equation of the new function vertically stretched by a factor of 3 flip over the x axis