Is 5x+6y=1 a direct variation? (yes or no only) Is -4x+9y=4 a direct variation? (yes or no only)

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asked Jul 7, 2018 128k views

1 Answer

TabeaKischka · Answer 1 · 2018-07-11T22:24:40+0000

direct variation is y=kx
indirect variation is y=k/x

if we can get it into that form, then it is

5x+6x=1
6y=-5x+1
y=(-5/6)x+1/6
yes

-4x+9y=4
9y=4x+4
y=(4/9)x+4/8
yes

Is 5x+6y=1 a direct variation? (yes or no only) Is -4x+9y=4 a direct variation? (yes or no only)

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