10th grade function help?
If f(x)=3(x+5)+4/x what is f(a+2).
I know you have to plug in (a+2) for each value where x was, but I'm not getting any of my answer choices as solutions? Help!

Question

10th grade function help?
If f(x)=3(x+5)+4/x what is f(a+2).
I know you have to plug in (a+2) for each value where x was, but I'm not getting any of my answer choices as solutions? Help!

studytheworld · Answer

If $$f(x)=3(x+5)+\frac{ 4 }{ x }$$ what is $$f(a+2)$$ Answer choices: http://prntscr.com/cksdvf

studytheworld · Answer

@Visarika23

jhonyy9 · Answer

just you need substitute the (a+2) in place of x so what will get ?

visarika23 · Answer

Is it not B?

studytheworld · Answer

I don't know, when I calculate I get this long thing that isn't anything close to my choices

jhonyy9 · Answer

Study i like check your work step by step and i like help you 

please collaborate - ok. ?

visarika23 · Answer

Ya show ur work

jhonyy9 · Answer

Study you dont like getting help ?

so directly right answers we not can giving bc. this is opposite to the OS rules

studytheworld · Answer

I'm trying to type it

studytheworld · Answer

But nvm I can't get it, I don't know how I got my answer. It doesn't really matter since I know it's wrong. I just need help getting the RIGHT answer

studytheworld · Answer

So I'm not really sure where to start... @Visarika23 @jhonyy9

visarika23 · Answer

See when u put x=a+2 u get
3(a+2+5) + 4/(a+2)
3(a+7) + 4/(a+2)

retireed · Answer

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