document.write( "Question 225334: Explain why the line x=4 is a vertical line \n" ); document.write( "
Algebra.Com's Answer #168157 by LtAurora(115)![]() ![]() You can put this solution on YOUR website! Since it has no slope, or the slope is undefined, it is vertical. \n" ); document.write( " \n" ); document.write( " |