Enter an expression equivalent to b10 in the form bm​

Given the graphed function below which of the following orders pairs are found on the inverse function

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

What are the values of each variable in the diagram below?