## anonymous 3 years ago Find the inverse of..?

1. anonymous

|dw:1359613928022:dw|

2. anonymous

let y = $\sqrt{x-4}$

3. anonymous

square both the sides to get y^2 =x-4

4. anonymous

change the equation to $x=\sqrt{y-4}$ and solve for y

5. anonymous

take -4 on the left side

6. anonymous

But the -4 is in the rt

7. anonymous

u get y^2+4 = x

8. anonymous

replace x by y and y by x u will get the inverse

9. anonymous

what he said

10. anonymous

Still a bit confused with what you do with the -4

11. anonymous

i have added +4 on both sides so that -4 gets cancel on the right hand side

12. anonymous

So I get 4+x=sqrt y

13. anonymous

14. anonymous

after this cancel -4 and +4 on right hand side

15. anonymous

@manishsatywali Thank you :)

16. anonymous

alwaz welcum