Question

Medal Awarded!
If f(x)=1/x+2, what is f(3+h)?
1/3+h
1/h+5
1/(x+2)(3+h)
(3+h)/(x+2)

Answer 1

I'm guessing 1/h+5 but I'm not sure

Answer 2

yep!

Answer 3

In f(x) is the entire (x+2) in the denominator or just the x?

Answer 4

just x

Answer 5

If it just x, then f(3+h) = 1/(3+h) + 2 = 1/(3+h) + 2(3+h)/(3+h) = (2h+7)/(3+h) 2hich is not one of the choices.

Answer 6

Please use the Equation editor at the bottom of the reply box. Otherwise you will have to use parenthesis properly.

Answer 7

.. u misread the question it's f(x) = 1/(x+2) not f(x) = 1/x + 2

Answer 8

That was exactly my earlier question: In f(x) is the entire (x+2) in the denominator or just the x?

Answer 9

idk how you some how brought ln into this xD

Answer 10

There is a difference between: 1/x + 2 and 1/(x+2). With the equation editor they will respectively look like this:
\[\Large \frac{ 1 }{ x } + 2 \quad ; \quad \frac{ 1 }{ x+2 }\]

Thus when posting a question with the editor one should use parenthesis to make clear the whole thing is in the denominator.

Answer 11

i just know how to do it with out ln :( too advanced!

Answer 12

That was not the natural logarithm ln (LN) but the word In (IN) in my earlier question.

Answer 13

I meant "when posting a question WITHOUT the editor one should use parenthesis" earlier.

Answer 14

oh ok np :)