line slope 80 videos

Line of Best Fit
PreAlgebra Introductory Statistics
Overview of correlation, scatterplots, and line of best fit

Constructing Parallel Lines
Geometry Constructions
How to construct parallel lines using three different methods.
transversal duplicating angles corresponding alternate interior alternate exterior 
Graphing Lines using a Table of Values
Algebra Linear Equations and Their Graphs
How to graph a line by making a table of values.
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Computing Difference Quotients
Precalculus Introduction to Functions
How to compute and simplify the difference quotient of a linear function.
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Computing Difference Quotients
Precalculus Equations of Lines, Parabolas and Circles
How to compute and simplify the difference quotient of a linear function.
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The Definition of the Derivative
Calculus The Derivative
How to define the derivative of a function at a point x=a.
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Connecting Graphs, Tables, and Equations
Algebra Graphs and Functions
How to connect linear equations, tables of values, and their graphs.
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Derivatives of Linear Functions
Calculus The Derivative
How to determine the derivative of a linear function.
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Scatterplots and Correlations
Algebra Introduction to Statistics
How to identify positive correlations, negative correlations, or no correlation between two variables.
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Standard Form of Linear Equations
Algebra Linear Equations and Their Graphs
How to determine what form an equation is written in.
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Writing an Equation to Describe a Table
Algebra Graphs and Functions
How to write a function to describe a table of values.
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Writing an Equation to Describe Pictures
Algebra Graphs and Functions
How to write an equation to describe a set of pictures.
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Vertical Angles
Geometry Reasoning, Diagonals, Angles and Parallel Lines
How to define and identify vertical angles.
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Corresponding Angles
Geometry Reasoning, Diagonals, Angles and Parallel Lines
How to define corresponding angles and their special properties.
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Graphing Equations by Making a Table of Values
PreAlgebra Graphing in Two Dimensions
Graphing a line by making a table of values

Definitions and Applications of Absolute Value
Algebra Absolute Value
What is absolute value?
absolute value number line distance 
Rays
Geometry Geometry Building Blocks
How to identify, define, and label rays and opposite rays.
ray line endpoint opposite rays 
ACT Geometry
ACT ACT Math
Short, helpful video on ACT Geometry by top ACT prep instructor, Devorah. Videos are produced by leading online education provider, Brightstorm.
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Comparing Fractions
PreAlgebra Fractions and MIxed Numbers
Comparing fractions using < or > and ordering them on the number line