Practical Problem: Pricing a Product and Maximizing Profit
Using a quadratic equation with two variables to solve a practical problem involving product pricing.
Practical Problem: Predicting the Costs for a Business
Using a linear equation to calculate the cost of building thirty tables to sell.
Adding More Complex Expressions
Demonstration of adding terms in a complex algebraic expression and a practical problem demonstrating application of this skill in the real world.
When the Elimination Method is Easiest
How to decide whether substitution or elimination is the better method for solving a system of equations when both equations are in the same form and neither has been solved for a variable.
Horizontal and Vertical Lines in Slope-intercept Form
Writing horizontal and vertical line equations in slope-intercept form.
Practical Problem: Finding the Price of Chairs
A practical problem is used to demonstrate the strategy of doing the addition and subtraction before doing the division when solving an equation.
Deciding Between Substitution and Elimination
How to decide whether substitution or elimination is the better method for solving a system of equations in which one equation has been solved for a variable.
Equation That Has No Solution, An
An equation is found to have no solution after using the least common denominator to get a quadratic equation.
Changing Standard Form Equations to Slope-intercept Form
To change a linear equation from standard form to slope- intercept form, solve for y. The procedure is demonstrated several times.
Estimating Radicals to Set a Safe Speed Limit
A practical problem involving setting a speed limit is solved that involves estimating radicals to find the value of an irrational solution.