If f(x) = 4(3x – 5), find −1 question 19 options: a) f−1(x) = x+54 f - 1 ( x ) = x + 5 4 b) f−1(x) = x+512 f - 1 ( x ) = x + 5 12 c) f−1(x) = x−2012 f - 1 ( x ) = x - 20 12 d) f−1(x) = x+2012

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