Finding local turning points without a calculator

[dingo]

Hi ,
I am a bit confused with this question as I don't really understand how I can find maximum within the parameters I'm given

 

[Dr.Peterson]

Hi ,
I am a bit confused with this question as I don't really understand how I can find maximum within the parameters I'm given

View attachment 22931

Sketch the graph, showing the turning points provided. Then consider the interval [0, 5], and keep in mind that the absolute max and min in a finite interval can be either at a turning point or at an end point of the interval. Compare the y-coordinates of the points given, and those at x=0 and x=5.