{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/17cf790a169845238c63edacd2960f52\" frameborder=\"0\" width=\"1440\" height=\"1080\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":1080,"width":1440,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":1080,"thumbnail_width":1440,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/17cf790a169845238c63edacd2960f52-00001.jpg","duration":139,"title":"April 2019_S4_Q27","description":"p: In the xy-plane above, line m is perpendicular to line l (not shown). Which of the following could be an equation of line l ?"}