Question

If f(x)=1/x+2

What is f(3+h)?

a) (3+h)/(x+2)

b) 1/ (x+2) (3+h)

c) 1/ 3+h

d) 1/ h+5

Answer 1

what is h?

Answer 2

Doesn't matter, just plug it in.

Answer 3

plug things in

Answer 4

\[\huge f(3+h) = \frac{ 1 }{ (3+h)+2 }\]
Simplify it.

Answer 5

1/x+2 means (1/x) + 2

Answer 6

I think he meant it to be:
\[\huge f(x) = \frac {1} {x+2}\]

Answer 7

laughing out loud

Answer 8

but next time use
1/(x+2)
to clarify it..

Answer 9

I think given that, the right answer would be a? (3+h)/(x+2)

Answer 10

what do you get when you simplify \[\frac{ 1 }{ (3+h)+2 }\]