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Week 11 – Pre Cal 11 – Solving Inequalities

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)

 

 

 

 

Published inMath 11

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