O'Reilly logo

Alpha Teach Yourself Algebra I in 24 Hours by Jane Cook

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Hour 19
Solving Inequalities: Graphing
Learning how to solve systems of equations takes you into the two-dimensional world of ordered pairs and graphed lines with slopes and y-intercepts. The choices of how you find the solution for a system put you in charge, giving you the power to make a decision based on analyzing your options.
 
This hour, you return to solving problems with just one variable, but it’s not really a step backward. It’s taking the basic properties that help you solve equations and applying these same properties to solve problems you were introduced to in Hour 2—inequalities.

Solving and Graphing Inequalities

Many situations in life require an exact answer, including “How much acid should I add to 30 liters of 20% acidic ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required