{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/a247ff5784b44f34b8aa58264e110b00\" 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/a247ff5784b44f34b8aa58264e110b00-00001.jpg","duration":265,"title":"April 2019 S3_Q20","description":"p: (x-6)^2 + (y-3)^2 = 25\nThe graph in the xy-plane of the equation above is a circle. If the circle is translated downward a units such that the circle is tangent to the x-axis, the equation becomes (x-6)^2 + (y-3+a)^2 = 25. What is the value of a?"}