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Mathematics 8 Online
OpenStudy (itzmee):

Check my answer? http://prntscr.com/cgnvit

OpenStudy (itzmee):

@zzr0ck3r

OpenStudy (itzmee):

@acxbox22

OpenStudy (itzmee):

@kittiwitti1

OpenStudy (kittiwitti1):

. I'm right here.

OpenStudy (itzmee):

haha

OpenStudy (kittiwitti1):

lol

OpenStudy (kittiwitti1):

It says: "the screenshot was removed" o:

OpenStudy (itzmee):

one sec ill get another

OpenStudy (itzmee):

http://prntscr.com/cgnwmk

OpenStudy (kittiwitti1):

The inverse of an equation is found by switching \(x\) and \(y\).

OpenStudy (kittiwitti1):

So if you have an equation that says that \(y=3x+4\), your inverse will be \(x=3y+4\). But you still have to find the y-value

OpenStudy (kittiwitti1):

Here you are given \(f(x)=2x-10\), also known as \(y=2x-10\). If you switch the \(x\) with the \(y\) you would get \(x=2y-10\). Now you need to find what \(y\) by itself is.

OpenStudy (kevin):

You need to to make equation of x from y =2x - 10. Can you do it?

OpenStudy (kittiwitti1):

Your first step to isolating/finding what \(y\) is would be to get \(2y\) alone and \(x\) on the other side:\[\cancel{x}\cancel{-x}-2y=\cancel{2y}\cancel{-2y}-10-x\]\[-2y=-10-x\]

OpenStudy (itzmee):

wait so my answer is "True"?

OpenStudy (kittiwitti1):

Well, did you solve for the inverse?

OpenStudy (itzmee):

yes, i got \[f -\prime (x) = 5+ \frac{ x }{ 2}\]

OpenStudy (itzmee):

@kittiwitti1

OpenStudy (kittiwitti1):

What is that

OpenStudy (kittiwitti1):

f-`(x) lol

OpenStudy (itzmee):

f^-1

OpenStudy (kittiwitti1):

Oh, this?\[\Large{f^{-1}(x)}\] Anyway, you got it right ☺ good job

OpenStudy (itzmee):

yes. thank you

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