How to Show a Range on a Graph

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Showing a range on a graph will require you to think about the X and Y values. Find out how to show a range on a graph with help from a math professional in this free video clip.

Part of the Video Series: Math Concepts
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Video Transcript

Hi, I'm Rachel, and today we're going to be going over how to show the range on the graph. So, let's say we have a graph of a parabola, like this. Let's say that it's just, it goes through the, the origin right here. So it's y equals x-squared. So, that's a thick parabola. So, we want to show the range on the graph. Well, the domain is the x values and the range is the y values. So range is going to be all possible values of y. Well x, whereas x is going to be any number, y has to be greater than zero, right? Because it's x-squared. So any number when you square it, as you can see from the graph, it's going to be greater than zero. So the range is going to be greater than or equal to zero, right? Because it's possible that x is zero, zero squared is zero. So generally we just write that right? You can write it right on the graph, y is greater than or equal to zero. You can write it anywhere in any of the quadrants of the graph, and it's shown in the graph already by the graph itself. The graph shows that the range is always going to be greater than zero. I'm Rachel, and thank you for learning with me today.

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