Question

f(x) = 4throot(x), c = 1; find the slope and the y-intercept of the tangent line T.

Answer 1

could you tell me where you're having trouble?

Answer 2

first you need the derivative, so let me know what you get for that

Answer 3

f(x) = 4throot(x) = x^(1/4); f'(x) = (1/4)x^(-3/4) = (1/4)(1/[x^(3/4)]) = 1/(4x^[3/4]).....

Answer 4

and the value at x=1
(you really shouldn't say c=1, that is just the usage in your book, it may confuse people)

Answer 5

*I mean and what is the value at x=1?

Answer 6

right it's 1

Answer 7

f'(1)=1 ???
I don't think so, check again...

Answer 8

i mean 4!!!!

Answer 9

I MEAN 1/4!!!!!!!

Answer 10

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