# directed line segment   13 videos

• #### Direct Variation

##### AlgebraLinear Equations and Their Graphs

How to tell if two variables vary directly.

direct variation y intercept constant of variation
• #### Finding the Equation of a Graphed Line

##### AlgebraLinear Equations and Their Graphs

How to write the equation of a graphed line.

point slope form slope intercept form slope y intercept
• #### Graphing Lines using Intercepts

##### AlgebraLinear Equations and Their Graphs

How to graph a line using the x and y intercepts.

x intercept y intercept standard form
• #### Parallel and Perpendicular Lines

##### AlgebraLinear Equations and Their Graphs

How to determine whether lines are parallel, perpendicular, or neither.

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• #### How to Graph a Line using y=mx+b

##### AlgebraLinear Equations and Their Graphs

How to graph a line.

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• #### Finding the Slope of a Line from a Graph

##### AlgebraLinear Equations and Their Graphs

How to find the slope of a line if given a graph.

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• #### Finding the Slope of a Line from an Equation

##### AlgebraLinear Equations and Their Graphs

How to use the slope-intercept form of a line.

slope slope intercept form y intercept
• #### Graphing Lines using a Table of Values

##### AlgebraLinear Equations and Their Graphs

How to graph a line by making a table of values.

table of values substitution
• #### Scatterplots and Correlations

##### AlgebraIntroduction to Statistics

How to identify positive correlations, negative correlations, or no correlation between two variables.

scatterplot correlation trend line line of best fit
• #### Definitions and Applications of Absolute Value

##### AlgebraAbsolute Value

What is absolute value?

absolute value number line distance
• #### Finding the Slope of a Line from 2 Points

##### AlgebraLinear Equations and Their Graphs

How to find the slope if you're given 2 points.

slope point ratio
• #### Point-Slope Form of Linear Equations

##### AlgebraLinear Equations and Their Graphs

How to write the equation of a line in point-slope form.

slope equation
• #### Writing Equations in Slope-Intercept Form

##### AlgebraLinear Equations and Their Graphs

How to write the equation of a line using slope-intercept form.

slope y intercept slope intercept form