ATAR Notes: Forum

VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: BlakePre on November 03, 2018, 09:48:43 pm

Title: Methods Notation
Post by: BlakePre on November 03, 2018, 09:48:43 pm

For practice exams, when I want to sub in a value into the derivative of let’s say y, then I’ll write dy/dx|x=a = ~~~

Does anyone know if this notation is allowed, or would I lose marks?

Title: Re: Methods Notation
Post by: Sine on November 03, 2018, 09:54:15 pm

Quote from: BlakePre on November 03, 2018, 09:48:43 pm

For practice exams, when I want to sub in a value into the derivative of let’s say y, then I’ll write dy/dx|x=a = ~~~

Does anyone know if this notation is allowed, or would I lose marks?

This is fine imo - and I have used it during exams (not 100% certain whether I needed to use it in the actual exam though).
If you are worried about it you can say let dy/dx = f'(x) and use f'(a)