## hybrik one year ago What is the inverse of y=2x+7, is it y=(x+7)/2?

1. hybrik

@ganeshie8 @welshfella

2. Nnesha

$\huge\rm \color{reD}{y}=2\color{blue}{x}+7$ switch x and y to find inverse $\huge\rm \color{blue}{x}=2\color{red}{y}+7$ now solve for y

3. hybrik

yeah, which is (x+y)/2

4. Nnesha

no solve for y what would be ur first step ?

5. hybrik

oops, x+7, typo

6. Nnesha

still.... wrong.

7. Nnesha

what was your first step ?

8. Nnesha

ello ??????...

9. hybrik

huh

10. hybrik

my answer was (x+7)/2 = y

11. Nnesha

that's wrong.

12. Nnesha

how did you get that ? what was ur first step ? show ur work maybe i'll able to find out the mistake...

13. hybrik

y-7=2x

14. Nnesha

yes right divide both sides by 2 and then switch x and y

15. hybrik

(y-7)/2 = x, (x-7)/2 = y

16. Nnesha

looks good!