This week in Precal, we learned about solving inequalities graphically and algebraically. We started by having a review of inequalities from Math 9 and Math 10.
How to solve inequalities graphically:
Example 1: (Linear Inequalities)
Example 2: (Quadratic Inequalities)
How to solve inequalities algebraically:
This method is what I think is more efficient since I don’t necessarily have to sketch a graph, but instead I sketch a number line when solving inequalities algebraically because it’s less confusing compare to sketching a graph.
Example 1: (Linear Inequalities)
Example 2: (Quadratic Inequalities)
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