Parabola, The
Every parabola has an extreme value, which is the highest or lowest point on the curve, and is symmetrical.
Review of Solving Systems of Equations by Substitution
Using the substitution method to solve a system of equation.
Examples of Solving Systems of Equations Using the Elimination Method
The elimination method of solving a system of equations is demonstrated.
Practical Problem: Shelf Space
Using the substitution method with a system of equations to solve a practical problem involving use of shelf space.
Solving a Mixture Problem Using One Variable
A word problem involving mixing a solution that needs to be 25 percent chlorine is analyzed, the unknown identified, and a one-variable equation written to solve the problem.
Solving a Rate-Time-Distance Problem Using One Variable
How to write an equation with one variable to solve a practical problem involving rate, time, and distance using a table to help organize the information.
Solving a Rate-Time-Distance Problem Using Two Variables
Writing a two-variable system of equations to solve a practical problem involving rate, time, and distance using a table to help organize the information.
Roots of Variables
Simplifying radicals with cube and other roots and variables.
Simplifying Radicals With Variables
Using the rules for simplifying radicals with numbers in the radicand to simplify radicals with variables.
Graphing Linear Equations with One Variable
How to graph a linear equation with one variable.