Can you solve this- moved

two functions, [MATH]f(x) \text{ and } g(x)[/MATH], are inverses if [MATH]f[g(x)]=g[f(x)] = x[/MATH]
 
You can you skeeter's rule above. Personally I choose to think about it first.

f(x) divides x by 2. If you want to get x back you need to multiply the result (the one you got by computing x divided by 2) by 2. Now g(x) = 2x does exactly that! So yes, they are inverses of one another.

f(x) multiplies x by 2 and then add 5. How do you undo that process? That will be the inverse.
Think of it this way. After many many calculations you have a number in your calculator. Then you multiply this number by 2 and add 5 to it. Then you realized that you did not mean to multiply by 2 and add 5, so how would you get back to that original number.
 
Can someone just tell me the answers to the empty spaces and the answers of the bubble questions?
 
brineedshelp said:
Can someone just tell me the answers to the empty spaces and the answers of the bubble questions?
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