So that's 5 1 6ths. Minus 5 1 6ths. And so this is equal to 8 1 6ths minus 5 1 6ths, which is equal to 3 1 6ths, but the important thing is it's equal to a positive value. So in this blue interval right over there, and actually let me put 4 5ths in a different color so we see that it's not part of that interval. So in this light blue interval right here between zero and 4 5ths, g prime of x is greater than zero, so we know our function is increasing. And so let's see what's happening to the right of this. And the easiest value to try out would just be 1.