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Mathematics 10 Online
OpenStudy (mintgum):

Help? http://prntscr.com/cd72zv

OpenStudy (mintgum):

@sammixboo

OpenStudy (mintgum):

@zepdrix

OpenStudy (mintgum):

@agent0smith

OpenStudy (agent0smith):

Swap x and y. Now solve for y.

OpenStudy (mintgum):

would my answer be 1/3x +9?

OpenStudy (mintgum):

@agent0smith

OpenStudy (kittiwitti1):

y=3x+9 \(\color{seagreen}{\text{Swap x and y}}\) \(\Large\rightarrow\) x=3y+9

OpenStudy (kittiwitti1):

\[\cancel{x}\cancel{-x}-3y=\cancel{3y}\cancel{-3y}+9-x\]\[-3y=9-x\]

OpenStudy (kittiwitti1):

\[\large{\frac{\cancel{-3}y}{\cancel{-3}}}=\frac{9}{-3}-\frac{x}{-3}\]You have an error in your calculations. Check this last step.

OpenStudy (mintgum):

so my answer would be y = 9x +3?

OpenStudy (kittiwitti1):

It's not the answer... sorry, try again

OpenStudy (kittiwitti1):

To rearrange in the proper slope-intercept form,\[\large{\frac{\cancel{-3}y}{\cancel{-3}}=-\frac{x}{-3}+\frac{9}{-3}}\]Simplify this and you will get the answer.

OpenStudy (kittiwitti1):

Are you confused?

OpenStudy (mintgum):

very

OpenStudy (kittiwitti1):

That's the last step. Where are you confused?

OpenStudy (kittiwitti1):

Do you need me to go over the whole thing again? I can do that

OpenStudy (mintgum):

\[y = \frac{ 1 }{ 3 }x - 3\] is my answer?

OpenStudy (kittiwitti1):

Yes! good job ☺

OpenStudy (mintgum):

Thank u!

OpenStudy (kittiwitti1):

No problem. Good luck on your studies, Happy Openstudying ♣

OpenStudy (mintgum):

:)

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