So our relative maximum point should be, should happen at an x-value. It should happen at an x-value where our first derivative transitions from being greater than zero to being less than zero. So what x-values, let me say this. So we have f has relative, let me just write it shorthand, relative maximum at x-values where f-prime transitions, transitions, transitions from positive, positive, to negative, to, let me write this a little bit neater, to negative, to negative. And where do we see f-prime transitioning from positive to negative? Well, over here we see that only happening once. We see right here f-prime is positive, positive, positive, and then it goes negative, negative, negative.