We have the equation for function A. Is is a line, already written in the form
. In these cases, the slope of the line is
. So, the slope of function A is 1.
As for function B, we have to pick two of its graph's point, say
and compute the slope as follows:

We can see that the function passes through the points
and [/tex] (1,1) [/tex]. So, its slope is

So, the slope of function A is 1, and the slope of function B is 2.
This means that the first option is correct.