1. The problem statement, all variables and given/known data Plot each function and decide, based on the plot whether or not it is monotonically increasing/decreasing or strictly monotonically increasing/decreasing. f(x) = -5 2. Relevant equations 3. The attempt at a solution I can plot this function no problem, and show algebraically why it fits the definition of monotonically increasing and monotonically decreasing. My question is, how do I justify this 'based on the plot'? The next part of the question is to show it algebraically, but graphically i'm not really sure why my answer is correct... Thanks for any help you can give.