Two lines have equations \(y = {m_1}x + 3\) and \(y = {m_2}x - 7\). If the lines are parallel then \({m_1} = {m_2}\) and if \({m_1} = {m_2}\) then the lines are ...

Lines may be essential in Photoshop documents, such as when you're setting up a page for executives to hand-write business statements or for employees to take notes at your next seminar. While drawing ...