Suppose f(x) = x-1. Find the graph of f(5x)

How to use order of operation in 20 divide by 4 multiply 5 = 1

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 the function m(x) has the point (5,2) on its graph name a point that would be on the funtion m(5x)