• #### Angle Inclination of a Line - Problem 2

How to find the angle of inclination of a line.
• #### Constructing a Perpendicular at a Point on a Line - Problem 1

##### Math›Geometry›Constructions
How to construct a square if the perimeter of the square is given as a line segment.
• #### Parallel and Perpendicular Lines - Problem 1

##### Math›Algebra›Linear Equations and Their Graphs
How to write the equation of a line parallel to a given line through a given point.
• #### Proportional Segments Between Parallel Lines - Concept

##### Math›Geometry›Similarity
How to prove two triangles are similar using a line parallel to a base.
• #### Parallel and Perpendicular Lines - Problem 7

##### Math›Algebra›Linear Equations and Their Graphs
Write the equation for a line parallel to a given line through a given slope in point slope and then slope intercept form, including fractional slopes
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• #### Parallel and Perpendicular Lines - Problem 10

##### Math›Algebra›Linear Equations and Their Graphs
Write the equation for a line perpendicular to a given line through a given slope in point slope and then slope intercept form
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• #### Slope-Intercept Form of a Line - Concept

##### Math›Algebra 2›Graphs of Linear Equations
How to graph a line in slope-intercept form.
• #### Proportional Segments Between Parallel Lines - Problem 1

##### Math›Geometry›Similarity
How to find a missing length in a triangle cut by a line parallel to a base.
• #### Proportional Segments Between Parallel Lines - Problem 2

##### Math›Geometry›Similarity
How to find missing lengths created by two parallel lines passing through a triangle.
• #### Point-Slope Form of a Line - Concept

##### Math›Algebra 2›Graphs of Linear Equations
How to use point-slope form of a line.
• #### The Vector Equation of a Line - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to write the vector equation of a line.
• #### The Vector Equation of a Line - Problem 3

##### Math›Precalculus›Vectors and Parametric Equations
How to write the vector equation of a line segment given its endpoints.
• #### Standard Form of a Line - Problem 2

##### Math›Algebra 2›Graphs of Linear Equations
How to find the intercepts of a line in standard form.
• #### Lines in Polar Coordinates - Concept

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to find the polar equation of a line through the origin (or pole).
• #### Parametrizing a Line Segment - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to write the parametric equations of a line segment that goes from point A to point B.
• #### Standard Form of a Line - Concept

##### Math›Algebra 2›Graphs of Linear Equations
How to use standard form of a line.
• #### Standard Form of a Line - Problem 1

##### Math›Algebra 2›Graphs of Linear Equations
How to find the equation of a line in standard form given the slope and a point.
• #### Slope-Intercept Form of a Line - Problem 2

##### Math›Algebra 2›Graphs of Linear Equations
How to find the equation of a line in slope-intercept form given the slope and a point.
• #### Point-Slope Form of a Line - Problem 1

##### Math›Algebra 2›Graphs of Linear Equations
How to find the equation of a line in point-slope form given a point and the slope.
• #### Parallel and Perpendicular Lines - Problem 9

##### Math›Algebra›Linear Equations and Their Graphs
Write the equation for a line parallel to a given line through a given slope in point slope and then slope intercept form with integer slope
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