SOLUTION: Tell whether x and y show direct variation. Explain the reasoning. If so, find k. x 1 2 3 4 ----------- - y 2 4 6 8

Algebra ->  Linear-equations -> SOLUTION: Tell whether x and y show direct variation. Explain the reasoning. If so, find k. x 1 2 3 4 ----------- - y 2 4 6 8       Log On


   



Question 1019183: Tell whether x and y show direct variation. Explain the reasoning. If so, find k.
x 1 2 3 4
-------------
y 2 4 6 8

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
They do, and k=2
y=kx
y=2x
Each y is twice the corresponding x-value.