# solving a quadratic   141 videos

• #### Solving Linear Systems Using Matrix Algebra

##### PrecalculusSystems of Linear Equations and Matrices

How to convert a system of linear equations into a matrix equation and solve it.

matrices square matrices matrix equation coefficient matrix inverse matrix identity matrix matrix multiplication
• #### Solving "Greater Than" Absolute Value Inequalities

##### PrecalculusLinear Equations and Inequalities

How to solve an inequality with an absolute value greater than a number.

absolute value inequality making 2 equations union
• #### Solving "Less Than" Absolute Value Inequalities

##### PrecalculusLinear Equations and Inequalities

How to solve an inequality with an absolute value less than a number.

absolute value inequality making 2 equations intersection

• #### The Discriminant

How to calculate and interpret the discriminant of a quadratic equation.

discriminant x intercepts number of solutions

• #### Proportions

##### AlgebraSolving Equations

How to solve proportions.

ratio proportion fraction cross multiply
• #### Introduction to Systems of Equations

##### AlgebraSolving Systems of Equations

How to solve a system of equations.

system of equations solution to a system of equations substitution elimination matrices
• #### Set Operation: Intersection

##### PrecalculusLinear Equations and Inequalities

How to solve define intersection.

Venn diagram union set operation and
• #### Thermochemical Equation

##### ChemistryThermochemistry

Understanding and solving thermochemical equations.

thermochemical equations
• #### Set Operation: Intersection

##### Algebra 2Linear Inequalities

How to solve define intersection.

Venn diagram union set operation and

• #### Domain Restrictions and Functions Defined Piecewise

##### PrecalculusIntroduction to Functions

How a domain restriction affects the graph of a function.

functions domain domain restrictions quadratic functions linear functions vertex parabola
• #### Polynomial Function

##### Algebra 2Polynomials

How to evaluate a polynomial in function notation.

function notation f(x) polynomial constant linear quadratic cubic
• #### Linear Inequalities

##### AlgebraSolving and Graphing Inequalities

How to notate solving and graphing inequalities.

inequality notation
• #### Absolute Value Equations

##### AlgebraAbsolute Value

How to solve equations with absolute values.

absolute value solutions