Let v1=[x1,y1,z1] and v2=[x2,y2,z2] assume that v1 and v2 are linearly independent, show that span{v1,v2} is a plane passing through the origin. What is the equation of that plane?

I know to show its a plane we need to show there are 2 degrees of freedom but from there on im pretty lost any help would be grealy appreciated.