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## JohnCarney111 Group Title I need help *** if someone can get back to me you will get a medal!! really need help lost one year ago one year ago

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1. amistre64 Group Title

Post the question you need help with, and not an advertisement to "swap answers" please

2. lexiamee Group Title

what quiz

3. JohnCarney111 Group Title

ok for the function 32 over x+3 find (g^-1*g(5)

4. JohnCarney111 Group Title

Graphing Radical Functions Quiz '

5. amistre64 Group Title

what is the value of g(5)?

6. JohnCarney111 Group Title

Sorry it soupposed to be (g^-1*g)(5)

7. lexiamee Group Title

I dont remeber that, srry I take Geometry and Id ont rmeber how to solve

8. JohnCarney111 Group Title

it does not say what g equals

9. amistre64 Group Title

im pretty sure g is the name of the function they gave you

10. amistre64 Group Title

$g(x)=\frac{32}{x+3}$

11. JohnCarney111 Group Title

ok so i multiply that funtion by itself to the -1 power?

12. amistre64 Group Title

the -1 notation here denotes the inverse of the function .. not really a power

13. amistre64 Group Title

do you know how to find an inverse?

14. JohnCarney111 Group Title

not really

15. amistre64 Group Title

given a function $y=\frac{32}{x+3}$ the inverse swapps x and y, so the inverse of this is $x=\frac{32}{y+3}$

16. JohnCarney111 Group Title

so now i divide?

17. amistre64 Group Title

lets work the inverse a little more .. just so things loook normal $x=\frac{32}{y+3}$ $y+3=\frac{32}{x}$ $y=\frac{32}{x}-3=g^{-1}(x)$

18. amistre64 Group Title

so, $g^{-1}*g=(\frac{32}x-3)(\frac{32}{x+3})$ plug in x=5 and find the product

19. JohnCarney111 Group Title

4

20. JohnCarney111 Group Title

now what? would i times 4 by 5?

21. amistre64 Group Title

not if your following what ive written ....

22. JohnCarney111 Group Title

the answer choices are 11 5 2 and 1 so ???

23. JohnCarney111 Group Title

what now

24. JohnCarney111 Group Title

sorry i am not good at this

25. amistre64 Group Title

hmm, you sure thats a "*" in between them or is it more of an "$$^o$$"

26. JohnCarney111 Group Title

an o

27. amistre64 Group Title

ahhh, that changes things, the open "o" means a composite, not a multiplication of the 2 of them

28. amistre64 Group Title

g^(-1) o g has a property that the input is the same as the output

29. lexiamee Group Title

could you check out the math chat box it may need to be controlled.

30. amistre64 Group Title

it needs the adminstrators to come online and deal with the isp itself .. so that the whole school gets banned

31. amistre64 Group Title

so if the input is 5, what is the output?

32. JohnCarney111 Group Title

5?

33. JohnCarney111 Group Title

-5

34. amistre64 Group Title

yes, if the input is 5, the output is 5 ... its a special property of composing inverses of each other

35. lexiamee Group Title

what school. Cant you bn them if they need

36. JohnCarney111 Group Title

so if there is an o don't multiply make input sam as output?

37. amistre64 Group Title

only if the functions are inverses of each other does that work. If they are not inverses the input and output can be different

38. JohnCarney111 Group Title

brb domestic situation at house have to help brother

39. amistre64 Group Title

good luck ::)