+253 A function is given below. Determine the average rate of change of the function between x = 1 and x = 1 + h.
+118608 I did one of these for you Sally and I tried really hard to explain it.
why don't you have a go at this one and then we'll talk about how you get on with it. 
Do a rough graph and put the values on. that will help too.
If you don't know what I mean I can show you - but think about it first.
