parallel lines 84 videos

Angle Inclination of a Line
Trigonometry Advanced Trigonometry
How to find the angle of inclination of a line.
angle inclination horizontal lines tangent slope 
PointSlope Form of a Line
Algebra 2 Graphs of Linear Equations
How to use pointslope form of a line.
point slope form equation of a line 
Constructing a Perpendicular to a Line
Geometry Constructions
How to find the shortest distance between a point and a line.
construction midpoint perpendicular equidistant shortest distance to a line 
SlopeIntercept Form of a Line
Algebra 2 Graphs of Linear Equations
How to graph a line in slopeintercept form.
slope intercept y=mx+b graphing a line 
The Vector Equation of a Line
Precalculus Vectors and Parametric Equations
How to write the vector equation of a line.
position vector direction vector vector addition scalar multiple vector equation line 
Lines in Polar Coordinates
Precalculus Polar Coordinates and Complex Numbers
How to find the polar equation of a line through the origin (or pole).
polar coordinates lines origin polar equation rectangular equation 
Parametrizing a Line Segment
Precalculus Vectors and Parametric Equations
How to write the parametric equations of a line segment that goes from point A to point B.
vector equation line segment parametric equations 
Motion Along a Line
Precalculus Vectors and Parametric Equations
How to write equations describing motion in a straight line given the velocity and the position when t=0.
velocity constant velocity position vector equation of a line parametric equations parametric equations of a line 
Three Undefined Terms: Point, Line, and Plane
Geometry Geometry Building Blocks
How to describe and label point, line, and plane. How to define coplanar and collinear.
point line plane coplanar collinear 
Finding the Equation of a Graphed Line
Algebra Linear Equations and Their Graphs
How to write the equation of a graphed line.
point slope form slope intercept form slope y intercept 
Horizontal and Vertical Lines
PreAlgebra Graphing in Two Dimensions
Equations and slopes of horizontal and vertical lines

Corresponding Angles
Geometry Reasoning, Diagonals, Angles and Parallel Lines
How to define corresponding angles and their special properties.
parallel lines angles congruence 
Resistor Circuits
Physics Electricity
How resistor circuits incorporate resistors in parallel and in series.
resistor circuits parallel series 
Graphing Lines using Intercepts
Algebra Linear Equations and Their Graphs
How to graph a line using the x and y intercepts.
x intercept y intercept standard form 
Duplicating a Line Segment
Geometry Constructions
How to duplicate a line segment using a compass and straightedge.
congruent segments construction compass straightedge 
Line of Best Fit
PreAlgebra Introductory Statistics
Overview of correlation, scatterplots, and line of best fit

Finding the Slope of a Line from a Graph
Algebra Linear Equations and Their Graphs
How to find the slope of a line if given a graph.
slope change ratio fraction slope triangle 
Finding the Slope of a Line from an Equation
Algebra Linear Equations and Their Graphs
How to use the slopeintercept form of a line.
slope slope intercept form y intercept