August 2022
Intermediate to advanced
640 pages
15h 59m
English
Content preview from Algebra II All-in-One For Dummies
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Chapter 16
Solving Systems of Inequalities
IN THIS CHAPTER
Determining where the solutions lie
Starting with linear systems
Adding in polynomials and conics
Looking at some real-life applications
Systems of equations and systems of inequalities have several similarities. The biggest one is that you’re looking for common solutions — what the statements have in common. But there’s a huge difference in the number of solutions. With systems of equations, if there is a solution or solutions, you can have one or two or a few more points that the equations have in common. With systems of inequalities, the solutions can go into infinity!
One advantage of knowing how to work with systems of equations (you find these in Chapters 14 and 15) is that this is the starting point for systems of inequalities. You start with a graph of the lines and curves that help designate where the solutions are lying, and then you describe where the solutions fall with respect to those helpers.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.