Determine whether y varies directly with x. If so, find the constant of variation and write the equation. (refer to link for graph)

yes; k = 3 and y = 3x

yes; k = 3 and x = 3y

no

yes; and k=1/3 and y=1/3x

Last option

Step-by-step explanation:

As per graph,

Then y= 1/3 x

so answer is yes; k=1/3 and y=1/3x

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step-by-step explanation:

it's both, now can you answer my most recent question?