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4 votes
X+y=6 does this show direct variation?

y-x=0 does this show direct variation?

User CzarMatt
by
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1 Answer

4 votes
x + y = 6 does NOT demonstrate direct variation, because the graph of this line does not go through the origin (0,0).

y-x=0, or y=1x, DOES demo direct var. The graph goes through the origin.