BQ #4: WHy is a "normal" tangent graph uphill, ut a "normal" tangent graph downhill?

An asymptote will occur in the graph if the triq function is undefined. It is undefined when x is equal to zero. Tangent is Y/X. The tangent graph will have an asymptote at some point when x is zero. The reason why tangent graph is uphill and some are downhill is because it follows the ASTC. In a tangent graph, Q1=positive, Q2=negative, Q3=positive and Q4=negative.

 It will go up/down depending on the asymptote. Cotangent graph will have a similar graph. It will still follow the ASTC however, cotangent and tangent have a different location of asymptote. Since cotangent is x/y, the asymptote will start at a different place. Boundaries in different place will lead to the graph to be uphill/downhill.