document.write( "Question 1003517: Jill would like to know why two line with an undefined slope are parallel. How would you respond? \n" ); document.write( "
Algebra.Com's Answer #620196 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! All lines with undefined slope are vertical lines. \n" ); document.write( "All vertical lines are parallel. \n" ); document.write( " |