There is a title which tells you what the data in the time graph is about. The horizontal (X) and vertical (Y) axes or lines are labelled to tell you what data has been collected and when.

Vertical analysis can become a more potent tool when used in conjunction with horizontal analysis, which considers the finances of a certain period of time. Michela Buttignol / Investopedia ...

There are no straight-line segments on a quadratic graph. Two consecutive horizontal points are joined ... locate the given amount. Draw a vertical line, using a ruler, from the given amount ...