## anonymous one year ago <3 <3

1. anonymous

Sorry, I don't know this one.

2. anonymous

Whats f(x) Equal

3. alekos

what is g(x) = ?

4. alekos

f[g(x)] = [(x+3)/4]^2 - 4[(x+3)/4] - 3

5. alekos

now just substitute x=9

6. anonymous

IT SHOULD BE -21

7. alekos

no, its not -21

8. YoungStudier

I'm sorry, I don't think I've learned this stuff yet.

9. haleyelizabeth2017

10. haleyelizabeth2017

First, plug 9 into the g(x) equation in place of x.

11. haleyelizabeth2017

Just so you know, I'm not going to give you a direct answer.

12. haleyelizabeth2017

But, I can set it up for you. $\frac{(9)+3}{4}$ What do you get when you add 9 and 3, then divide the sum by 4?

13. haleyelizabeth2017

@whystudyalonejamescollen55555

14. alekos

yes its -6

15. haleyelizabeth2017

16. haleyelizabeth2017

for the first part. Now plug 3 into the f(x) equation: $$f(3)=(3)^2-4(3)-3$$ $$f(3)=9-12-3$$ Simplify.

17. haleyelizabeth2017

Yes.

18. alekos

didnt give a direct answer. James already worked it out previously and I acknowledged that he was right

19. anonymous

Yes @alekos was helping me before as well :) thanks guys!

20. alekos

no problem