• #### Locus and Definition of a Circle and Sphere - Problem 1

##### Math›Geometry›Circles
How to find the locus of points that are equidistant from the endpoints of a segment.
• #### The Greatest Integer Function - Problem 3

##### Math›Precalculus›Introduction to Functions
How to graph a transformation of the greatest integer function that reverses the segments.
• #### The Midpoint and Distance Formulas in 3D - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find the length and midpoint of a segment in three dimensions.
• #### The Midpoint and Distance Formulas in 3D - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to derive the formula for the midpoint of a segment in three dimensions.
• #### Parametric Equations and Motion - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to determine the path of an object by eliminating the parameter when the position is given by parametric equations.
• #### The Geometric Representation of Vectors - Problem 3

##### Math›Precalculus›Vectors and Parametric Equations
How to plot a vector given its initial point and terminal point, and how to find its magnitude.
• #### Finding an Inverse Graphically - Problem 2

##### Math›Algebra 2›Inverse, Exponential and Logarithmic Functions
How to graph an inverse of a collection of line segments.
• #### The Geometric Representation of Vectors - Problem 2

##### Math›Precalculus›Vectors and Parametric Equations
How to plot a vector given its initial point and terminal point, and how to find its magnitude.
• #### The Geometric Representation of Vectors - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to plot a vector given its initial point and terminal point, and how to find its magnitude.
• #### The Midpoint and Distance Formulas in 3D - Problem 3

##### Math›Precalculus›Vectors and Parametric Equations
How to find the equation of the set of points equidistant from two given points.