Web Reference: Interactive, free online graphing calculator from GeoGebra: graph functions, plot data, drag sliders, and much more! We will see these toolkit functions, combinations of toolkit functions, their graphs, and their transformations frequently throughout this book. It will be very helpful if we can recognize these toolkit functions and their features quickly by name, formula, graph, and basic table properties. We can identify whether the graph of a relation represents a function because for each x -coordinate there will be exactly one y -coordinate. When a vertical line is placed across the plot of this relation, it does not intersect the graph more than once for any values of x.
YouTube Excerpt: This video demonstrates how to find
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