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[Frogger888]

the derivative is 4x^-1/2 can you solve from there?
Do you understand how I got that?

f(x)=8x^1/2 f'(x)=(8x^(1/2-1))/2 when you take the derivative the 1/2 comes out in front as a constant with the 8

 

[stapel]

the derivative is 4x^-1/2 can you solve from there?

I'm sorry, but... the derivative of what is 4x^-1/2? Can who solve what from where for which?

Please reply with the full and exact text of the exercise, the complete instructions, and a clear listing of what you have tried.

Thank you.

Eliz.

 

[Frogger888]

I meant to post that as a reply to another question it doesn't make sense out of its context. Sorry