Learn how to find maximum & minimum values of a function on a closed interval

  Key Points

Closed intervals are ranges of values which include the endpoints of the range

Open intervals, on the other hand, do not include the endpoints

Maximum and minimum values are the greatest and least ‘Y’ value in the closed interval

The maximum and minimum values correspond to the highest and lowest point on the graph

The maximum and minimum values always occur at a stationary point or at an endpoint

Find the stationary points and test their ‘Y’ values. Test the ‘Y’ values of the endpoints. 

Then compare all of the values to find the greatest and the least, which are the max and min values

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