Does y vary directly as x in this function? y = 3x

2 answers:

4 0

If it is in this form, or can be transformed into this form: y =kx,
then it is indeed a direct variation!

This is a direct variation : y = 3x
Because it's constant of variation here is 3

Arte-miy333 [17]2 years ago

4 0

Because in order for something to be a direct variation, it can have no 'b' or y-intercept. In this problem, you can see that it follows the form of y=mx. It has no 'b' term. Therefore, it is a direct variation.

If it were an indirect variation, i would have looked something like this...

y=3x+4...

Hope this helped!

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