Determine whether y varies directly with x. If so, find the constant of variation and write the equation.

X | Y
------
1 | -2
3 | -6
5 | -10

i think it's A ??
A. yes; k=2 and y=2x

B. no

C. yes; k= -2 and y= -2x

D. yes; k= -1/2 and y= -1/2x

3 answers

or is it C ???

C is correct

A
C
C
B
C
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