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Mathematics 8 Online
iYuko (iyuko):

HELP HELP HELP!

iYuko (iyuko):

http://prntscr.com/6zzv9n

iYuko (iyuko):

@rational

OpenStudy (rational):

direct variation equation is of form :\[y=kx\] where \(k\) is some number

OpenStudy (rational):

look at the options and see which ones can be converted into that form

iYuko (iyuko):

D is 1 of them?

OpenStudy (rational):

Yes dividing 2 each side gives \(y=\left(\frac{1}{2}\right)x\)

iYuko (iyuko):

And Is c 1?

OpenStudy (rational):

Yes, aren't you certain

iYuko (iyuko):

I don't think a and b are 1

OpenStudy (rational):

B is definitely not a direct variation

OpenStudy (rational):

A is actually a direct variation multiply both sides by 4/3 and see

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