The ordered pairs are on a graph of direct variation. Find the missing value. Show your work for full credit.
(-4, 3) and (x, 6
Only 1 question posted
Direct variation means the ratio of one variable by the other is always the same
Suppose y = kx
k=y/x = 3/-4
This must also be true of the second point
so 6/x = 3/-4
6/x = 6/-8 (note 3/-4 = 6/-8)
hence x = -8
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