SAMPLE VCAA HELP URGENT

[VCE123456789]

FOr question 8 i dont no how to determine its nature could someone please explain in detail .
Cheers

[VCE123456789]

ANYONE

[schnappy]

YOU COULD EITHER USE THE SECOND DERIVATIVE TEST WHICH IS NOT ON THE COURSE OR USE THAT STUPID SIGN TABLE WHERE YOU LOOK AT THE GRADIENT ON EITHER SIDE OF THE S.P.

[Linkage1992]

Try subbing in n-1 and n + 1 into the equation to see the gradient you get on each side.

[Blakhitman]

Think about it if 0<x<n then so and if x>n then so

using sign table you get what andrewloppol posted above.

[stonecold]

Think about it if 0<x<n then so and if x>n then so

using sign table you get what andrewloppol posted above.

sweet.  explained like a pro.  makes perfect sense

[Whatlol]

make it do this
  _
/   \

pr0