Trapped in a city of a thousand mountains part 2 China's vague censorship laws make it difficult to know what can and can't be talked about in songs. This ambiguity has pushed some artists to pursue other career paths. Others see it as a...

In the introduction to functions video, we discovered what functions are, what domain and range mean and how to solve some problems. We saw that they could be called f(x) or g(x) or any letter. In this video, we’re going to look at...