Answer
yes; 3=k
Work Step by Step
Direct variation has the form y=kx. Thus, we need to simplify to isolate y to see if it is direct variation. Thus, we obtain:
$6y=18x \\\\ y=3x$
This does have the form y=kx, so it is direct variation. k is the constant of variation, so we know that the thing x is being multiplied by, 3, is the constant of variation.
