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Mathematics 10 Online
OpenStudy (anonymous):

The variables x and y vary directly. Use the given values to write an equation that relates x and y: x = 4, y = -16

OpenStudy (anonymous):

I got 4X=-16 but is wasn't the right answer.

OpenStudy (hba):

\[x \alpha y\] \[x=ky\] \[k=\frac{ x }{ y }\]

OpenStudy (anonymous):

k?

OpenStudy (hba):

Yes that is what we have to find :)

OpenStudy (hba):

When we remove the prop sign constant comes :)

OpenStudy (hba):

So we suppose k is your constant :)

OpenStudy (anonymous):

que?

OpenStudy (hba):

What ?

OpenStudy (anonymous):

I thought it'd be y?

OpenStudy (hba):

You have y already :)

OpenStudy (anonymous):

so the answer would be like k=-y?

OpenStudy (hba):

k=x/y now put the values of x and y and get k

OpenStudy (anonymous):

how do I do that?

OpenStudy (hba):

x = 4, y = -16

OpenStudy (hba):

Put these values.

OpenStudy (anonymous):

what is the answer to this equation x =6y=7

OpenStudy (anonymous):

the x intercept/???

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