# the quadratic formula   23 videos

• #### Deriving the Quadratic Formula

##### Algebra 2Quadratic Equations and Inequalities

How to derive the quadratic formula by completing the square.

functions domain parent functions inequalities interval notation
• #### Solving Quadratic Equations in Disguise

##### Algebra 2Quadratic Equations and Inequalities

How to solve a complicated looking quadratic equation by substitution.

• #### Midpoint Formula

##### Algebra 2Graphs of Linear Equations

How to find the midpoint of two points.

midpoint formula
• #### Overview of the Different Methods of Solving a Quadratic Equation

##### Algebra 2Quadratic Equations and Inequalities

How to know which method to use when solving a quadratic equation.

factoring square root property completing the square quadratic formula pros cons comparison
• #### Graphing a Quadratic Inequality

##### Algebra 2Quadratic Equations and Inequalities

How to graph a quadratic inequality.

parabola inequality shading less than greater than test point
• #### Vocabulary of Quadratic Polynomials

##### Algebra 2Quadratic Equations and Inequalities

How to label the roots of a quadratic polynomial, solutions to a quadratic equation, and x-intercepts or roots of a quadratic function.

roots x intercepts solutions excluded values zeros function
• #### Dilations of Quadratic Graphs

##### Algebra 2Quadratic Equations and Inequalities

How to graph parabolas that are wide or skinny or upside down without making a table of values.

• #### Solving Quadratic Equations by Factoring

##### Algebra 2Quadratic Equations and Inequalities

How to solve quadratic equations by factoring.

zero product property factoring
• #### Solving a Quadratic Inequality using a Sign Chart

##### Algebra 2Quadratic Equations and Inequalities

How to solve a quadratic inequality using a sign chart.

sign number line sign chart less than greater than quadratic inequality
• #### Finding the Maximum or Minimum of a Quadratic

##### Algebra 2Quadratic Equations and Inequalities

How to use the shape of a parabola to find a maximum or minimum.

maximum max minimum min vertex quadratic
• #### The Discriminant of a Quadratic Equation

##### Algebra 2Quadratic Equations and Inequalities

How to use the discriminant to know the number and type of solutions to a quadratic.

discriminant type of solution number of solutions type of roots number of roots
• #### Conic Section Formulas

##### Algebra 2Conic Sections

How to identify a conic section by its formula.

parabola circle ellipse hyperbola center focus
• #### Change of Base Formula

##### Algebra 2Inverse, Exponential and Logarithmic Functions

How to use the change of base formula for logs to evaluate a logarithmic statement.

change of base log logarithm
• #### Solving Quadratic Equations Using Square Roots

##### Algebra 2Quadratic Equations and Inequalities

How to solve quadratic equations using square roots.

square root
• #### Finding Intercepts, Domain, Range and Vertex of a Parabola

##### Algebra 2Quadratic Equations and Inequalities

How to find the vertex, intercepts, domain and range of a quadratic graph.

• #### The Circle

##### Algebra 2Conic Sections

How to use the distance formula to derive the equation for a circle.

circle center radius distance formula equation for a circle
• #### Solving a Quadratic by Completing the Square

##### Algebra 2Quadratic Equations and Inequalities

How to complete the square.

square root property completing the square plus or minus
• #### Slope

##### Algebra 2Graphs of Linear Equations

How to find the slope between two points.

slope formula slope
• #### Exponential Growth and Decay

##### Algebra 2Inverse, Exponential and Logarithmic Functions

How to use the exponential growth and decay formula.

exponential growth exponential decay
• #### Recursion Sequences

##### Algebra 2Sequences and Series

How to use a recursion formula to represent the Fibonacci sequence.

recursion previous term Fibonacci