Asked by School Rocks

for the data in the table does y vary directly with x if it does write an equation for the direct variation

x y
4 28
6 48
8 72


yes;y=2x
yes;y=5x**
yes;y=7x
no
Answered by Damon
(48-28)/(6-4) = 10 = slope
(72 -48)/(8-6) = 12 = slope
(72-28)/(8-4) = 11 = slope
Hmmm, nope, slope is not constant, not a straight line
Answered by School Rocks
Thanks!
Answered by Damon
You are welcome.
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