Below are six facts about the values of two functions http://ta2.maths.ed.ac.uk:8080/maple...oijhmdbagg.gif and http://ta2.maths.ed.ac.uk:8080/maple...knkgijndhn.gif and their derivatives.

http://ta2.maths.ed.ac.uk:8080/maple...kpcdhpkbhk.gif

Find the rate of change of http://ta2.maths.ed.ac.uk:8080/maple...ocmdgodnjo.gif at http://ta2.maths.ed.ac.uk:8080/maple...bekjflapfm.gif.

Could someone please explain how to solve this?