Posted by **Jen** on Friday, September 14, 2007 at 11:37pm.

I need to have some problems checked and I need help with one of them.

Determine which two functions are invereses of each other.

1. f(x)=5x, g(x)=x/5, h(x)=5/x

-I got that f(x) and g(x) are invereses

2. f(x)=x-2/2, g(x)=2x-2, h(x)=x+2/2

- I got that none are invereses.

5. f(x)=x^4 -3, g(x)=4th square root -3, h(x)=x^4 + 3

-I am not too sure how to find the inverse on this one.

- Alegbra -
**drwls**, Saturday, September 15, 2007 at 1:14am
1. Correct

2. The inverse of (x-2)/2 is f^-1(x) = 2x -2

f and g are inverse functions

5. If f(x) = y,

x = (y+3)^(1/4)

f^-1(x) = (x+3)^(1/4)

That one has no inverse listed.

If h(x)= x^4 + 3

y = x^4 +3

(y-3)^(1/4) = x

h^-1(x) = (x-3)^(1/4)

This may be the same as g(x), but I think you typed g(x) incorrectly, leaving out an x

## Answer This Question

## Related Questions

- Algebra-Functions - Could you please check my answers and help me with two ...
- Algebra problems - I have some problems that I would like checked please. Find ...
- Math-Calculus - i have to questions that just need to be checked on to see if i ...
- Algebra II - I need some help with some problems as well as need some checked. ...
- Algebra - I have a few more questions that I either need help with or just need ...
- Algebra - I have some problems that I am having trouble with and I have some ...
- Math - I need help to set the equation up to solve a system to ensure that I get...
- Algebra - I have some problems that I need help with please. Thanxs! Find the ...
- Graphing polynomial functions - Given f(x)= 4x^2=9x+2 and g(x)=3x-2, find and ...
- 7th Grade Math - I got a math test coming up on Friday, and i need help on ...

More Related Questions