Using the discriminant to solve a practical problem involving the pricing of mugs for greatest profit.
A practice problem is given to find the distance between coordinates using the distance formula.
Review of the procedure for solving equations that contain rational expressions.
To factor completely, the greatest common factor must include every number and variable that is a factor of each term in the polynomial. A demonstration of how variables can be a part of the greatest common factor.
A variation problem always involves two sets of information and two formulas. To solve a variation problem, a general formula is written from the variation statement. A specific formula can then be written with the const..
The Pythagorean Theorem can be used to determine whether a triangle is a right triangle, given the length of its sides.
The Pythagorean Theorem is used to verify that a triangle is a right triangle, which is important because it is not always possible to determine visually.
The definition of a term within an algebraic expression.
When a system of equations gives no clear direction toward either the substitution method or the elimination method, use the one you prefer.
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.