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6. Inequalities: Can’t quite get enough? > You can visualize a solution set on ...
You can visualize a solution set on a number line
The number line is a great way to visualize a solution set. You’ve been using number lines to show points, but how about a range of points or an entire solution set? That would help us pick numbers to check our work and also help to understand what numbers will satisfy an inequality.
Here’s what we need to do:
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Determine the point of interest (in this case, 103,000). This is the known boundary point of your solution set. | |
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Look at the inequality symbol to decide what type of point to start with. | |
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Draw an arrow along the number line in the direction of solutions that work. That’s to the left on your number line for “less than” solutions and to the right on the number line for “greater than” solutions. | |
