Algebra
posted by abbey
Does the data in the table represent a direction variation or an inverse variation, write an equation
x 1 2 5 10
y 40 20 8 4
My answer is a direct variation, y=40x, is this correct?
here are the other answers
direct variation 7=1/40x
inverse variat xy=40
inverse xy=1/40

Steve
while 40 = 40*1, 20 ≠ 40*2
so, your first guess is wrong.
However, note that x*y=40 for all the items. 
fist me daddy
correct

Dani
the answer is C: inverse variation & xy=40
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