Question 828748
Parallel means it has the same form:
{{{2x-y=D}}}
Use the point to solve for D.
{{{2(0)-0=D}}}
{{{D=0}}}
{{{highlight(2x-y=0)}}}
 {{{ graph( 300, 300, -4, 4, -4, 4, 2x+2,2x) }}}