How to Use a Graph to Estimate the Absolute Maximum & Minimum Values of the Function to Two Decimal Places

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One thing a graph can tell you is an estimate of the absolute maximum and minimum values of a particular function to two decimal places. Learn how to use a graph to estimate the absolute maximum and minimum values of the function to two decimal places with help from a mathematics educator in this free video clip.

Part of the Video Series: Mathematics Education


Video Transcript

Hi. I'm Jimmy Chang and we're here to talk about how to use a graph to estimate the absolute maximum and minimum values to two decimal places. Now the one thing you want to consider is this is probably something that you might want to use a graphing calculator for, simply because while there's plenty of functions which can find absolute max and min for whole numbers there's going to be some times where you may have to estimate and have it guessed two decimal places. So here are some steps to help you get there. Now on a T I for example or any appropriate graphing calculator you definitely want to use the calc feature, which actually stands for calculate. Now depending on what you want to find, the maximum or minimum, what you want to think about is go to maximum or minimum after you select the calc option. Now, from there it's going to take you to the graph that you've already graphed on the calculator. And it may ask you for a left bound, okay, in other words how far left you want to go. And then it's going to ask you for the right bound, how far right you want to go, to find the maximum or minimum. And then after you select it, it's going to ask you guess?, do you want the calculator to guess, and generally you want to say yes. Now you confirm all of these choices by pressing the enter button. So basically on a graphing calculator to find the absolute max or min you want to just follow these steps and you should be good to go. So I'm Jimmy Chang and that's how to use a graph to find the absolute maximum or minimum in estimate to two decimal places.