Question

find the derivative of u=5x+1/2 sqrt of x

Answer 1

Rewrite the sqrt as a fractional exponent. From there, it will be easier to see what you need to do.( Psssst! Power rule!)
\[\large u=5x+\frac{ 1 }{ 2 } x^{1/2}\]

Answer 2

okay,

Answer 3

after that, just plug in the values for each?

Answer 4

Hmm you shouldn't need to "plug" anything in, do you know how to take a derivative using the power rule?

Answer 5

i got 5/ x^1/2

Answer 6

yeah

Answer 7

Hmmm

Answer 8

nx^ n-1?

Answer 9

sorry

Answer 10

yes good, that's the derivative of x^n :)

Answer 11

Understand what we did there? :O