Trend Graphs (Leaving Cert Mathematics): Flashcards

What is a trend chart?

A graphical representation of data points in sequential order, typically over time

What is the purpose of a trend chart?

To illustrate patterns or trends in data over time

What does the $x$-axis represent on a trend chart?

Independent variable, usually time

What does the $y$-axis represent on a trend chart?

Dependent variable or data being measured

What does each data point represent?

A specific measurement or observation

How are data points connected on a trend chart?

By lines to visualise trends

What does an increasing trend indicate?

Growth or increase (line rises)

What does a decreasing trend indicate?

Decline (line falls)

What does a steady trend indicate?

No change (line is flat)

Can trend charts show multiple data sets?

Yes, by plotting different lines on the same graph

What are the steps to create a trend chart?

1. Identify axes 2) Plot data points 3) Connect points with lines 4) Interpret trends