The function and the inverse of the function are reflections across the line y = x. How are the graphs of a function and its inverse related? The graph of an inverse of a function f -1(x) is the reflection of the graph of the function f(x) across the line y = x.
So if you're asked to graph a function and its inverse, all you have to do is graph the function and then switch all x and y values in each point to graph the inverse. Just look at all those values switching places from the f(x) function to its inverse g(x) (and back again), reflected over the line y = x.
There are 365 days in a year. There are 28 days in February. So the number of non-February days is 365 − 28 = 337. The probability that a randomly selected person is not born in February is therefore 337/365 or 92.3%.
