number of solutions 18 videos

The Discriminant
Algebra Quadratic Equations and Functions
How to calculate and interpret the discriminant of a quadratic equation.
discriminant x intercepts number of solutions 
Systems of Inequalities
Algebra Solving Systems of Equations
How to find the solution region for a system of inequalities.
system of inequality inequality greater than less than greater than or equal to less than or equal to solution region 
Vocabulary of Quadratic Polynomials
Algebra Quadratic Equations and Functions
How to label the roots of a quadratic polynomial, solutions to a quadratic equation, and xintercepts or roots of a quadratic function.
roots x intercepts solutions excluded values zeros function 
Solving Twostep Equations
Algebra Solving Equations
How to solve twostep equations.
expressions equations solutions 
Absolute Value Equations
Algebra Absolute Value
How to solve equations with absolute values.
absolute value solutions 
Solving Systems of Equations using Substitution
Algebra Solving Systems of Equations
How to solve a system of equations using substitution.
system of equations solution substitution 
Definitions and Applications of Absolute Value
Algebra Absolute Value
What is absolute value?
absolute value number line distance 
Solving Systems of Equations by Graphing
Algebra Solving Systems of Equations
How to solve a system of equations using graphing.
system of equations solution to a system of equations graphing 
Inconsistent and Dependent Systems of Equations
Algebra Solving Systems of Equations
How to identify a system of equations that is inconsistent or dependent.
system of equations solution parallel dependent inconsistent 
Cube Roots
Algebra Radical Expressions and Equations
How to find the cube root of a number.
cube root 

Mean
Algebra Introduction to Statistics
How to calculate the mean, or average, of a list of numbers.
mean measure of center average 
Solving Multistep Equations
Algebra Solving Equations
How to solve multistep equations.
expressions equations solutions implying like terms combining like terms 
Introduction to Systems of Equations
Algebra Solving Systems of Equations
How to solve a system of equations.
system of equations solution to a system of equations substitution elimination matrices 
Coin Word Problems
Algebra Word Problems Using Systems of Equations
How to solve word problems about values and number of coins.
coins system of equations substitution 
Sum of Digits
Algebra Word Problems Using Systems of Equations
How to solve a problem when asked to switch the digits of a 2digit number.
sum digits word problem 
Scientific Notation
Algebra Exponents
How to move between scientific notation and standard notation of numbers.
power scientific notation 
Solving Equations with a Variable on Both Sides
Algebra Solving Equations
How to solve equations with the same variable on both sides.
expressions equations solutions implying like terms combining like terms distributive property