When you look at this graph, you can see a curve which slightely goes up and down. There are the vertical y axis and the horizontal x axis. It shows us the "ganzrationale Funktion" and there are no other types of lines, only one curve and between -3 and -1 are an upward trend and between 0 and 2 are a downward trend over the period. This curve bounces up and afterwards it rallies down.
www.mathematik.net/ganzrationale-fkt/pg01s5p3.gif
1 comment:
You should try to find a chart that has some meaning (e.g. birth rate). Only then you can talk meaningfully about it. With a curve like this you can't really talk about a trend as it follows mathematical rules and it is a repetitive pattern.
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