Solving a Quadratic Equation Using the Quadratic Formula
Quadratic equations that cannot be solved by factoring or the square root method can be solved using the quadratic formula. When an equation is in standard form, the values of a, b, and c, including their signs, can be substituted for the letters in...
Solving a Word Problem Using One Variable
Writing and solving a word problem using a one-variable approach.
Solving a Complicated Mixture Problem
A complicated word problem involving percentages is broken into simpler parts and a solution found.
Solving an Equation with a Fraction
Most people are more comfortable working with whole numbers than with fractions, so when an equation includes a fraction the first thing to do is get rid of the denominator.
Solving a Proportion Problem
The number of bags of seed needed to cover a particular area, given the area one bag will cover, is calculated using a proportion.
Practical Problem: Can the Truck Fit Under the Underpass?
The Pythagorean Theorem can be used to solve problems involving the radius of a pipe. A practical problem involves finding the height of a truck that is carrying a stack of pipes.
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.