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Graphing a Function Rule

In this video, we will learn how to graph a function. To graph a function, you have to select x-values, and plug them into the equation. Once you plug those values into the equation, you will get a y-value. Your x-values and your y-values make up your coordinates for a single point. Keep plugging in x-values to get coordinates to plot more points on the graph, and then you will see your graphed function once the dots are connected. Be sure to label your graph.
 y = 2x - 4
 y = 2(1) - 4 = -2
 y = 2(2) - 4 = 0
These coordinates would look like this:
 (1,-2) and (2,0)

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