Curated OER
How Do You Solve an AND Compound Inequality and Graph It On a Number Line?
Solving a compound inequality is not as difficult as it might seem at first. Just break it apart and solve each side as an individual problem. See how to write these two solutions in set-builder notation. Then graph each inequality on...
Curated OER
How Do You Figure Out the Time Traveled if You Know Distance and Speed?
Yes, it's a word problem, but you know the formula for distance, d=rt. The word problem here gives you two values so all you have to do is plug them into the correct place and solve. Don't forget to use the division property of equality...
Curated OER
How Do You Solve an Identity Equation?
This equation has variables on both sides and the instructor demonstrates how to combine like terms to find the solution. It turns out that the solution has equal values on both sides of the equation, that's why it's an identity...
Crash Course
Focus and Concentration: Crash Course Study Skills #5
Daydreamers and multi-taskers beware: some of your preconceived notions about work and attention are about to be proven wrong. A video about the importance of focusing on one task at a time—and the cognitive disadvantages of becoming...
Curated OER
What's the Subtraction Property of Inequality?
Most of the rules that are used to solve equations can be used to solve inequalities. Take a look at the subtraction property of inequality. What is performed on one side of the inequality must be performed on the other side of the...
Curated OER
What's the Addition Property of Inequality?
The addition property of inequality is just like the addition property of equality. They each state that whatever is added to one side of the equation or inequality must be added to the other side. Watch this video and see how the...
Curated OER
What are Consecutive Numbers?
The instructor writes an example of integers in consecutive order, or counting order, and also an example of integers not in consecutive order. She then shows two special types of consecutives number patterns.