key points 73 videos

Boiling Point
Chemistry KineticMolecular Theory
The point at which matter boils.
boiling point vapor pressure atmospheric pressure 
Constructing a Perpendicular at a Point on a Line
Geometry Constructions
How to construct a perpendicular line at a point on a line.
perpendicular point on the line construct 
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 
Freezing Point Depression
Chemistry Chemical Solutions
Understanding the colligative property of solutions that decreases the freezing point.
freezing point depression elevation pressure vapor 
Plotting Points and Naming Quadrants
Algebra Graphs and Functions
How to plot points and name quadrants.
origin quadrants rectangular coordinates Cartesian coordinates points axis 
Boiling Point Elevation
Chemistry Chemical Solutions
Understanding the colligative property of solutions that elevates boiling point.
boiling point elevation temperature difference vapor pressure atmospheric pressure 
Finding the Slope of a Line from 2 Points
Algebra Linear Equations and Their Graphs
How to find the slope if you're given 2 points.
slope point ratio 
Point of Concurrency
Geometry Constructions
How to define point of concurrency; how to identify the four main points of concurrency in triangles.
intersection incenter angle bisectors circumcenter perpendicular bisector orthocenter altitude centroid median 
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 
Concavity and Inflection Points
Calculus Applications of the Derivative
How to show that a function is discontinuous at a point x=a because it is not defined there.

PointSlope Form of Linear Equations
Algebra Linear Equations and Their Graphs
How to write the equation of a line in pointslope form.
slope equation 
Critical Points
Calculus Applications of the Derivative
How to find a twosided limit by investigating onesided limits.

Transforming the Cotangent Graph
Precalculus Trigonometric Functions
How graph the cotangent function using five key points.
cosine sine cotangent even and odd functions the add pi identities period vertical asymptotes 
Transforming Secant and Cosecant
Precalculus Trigonometric Functions
How graph the secant function using five key points.
even functions the add pi identities secant cosine vertical asymptotes period periodicity 
Transforming the Cotangent Graph
Trigonometry Trigonometric Functions
How graph the cotangent function using five key points.
cosine sine cotangent even and odd functions the add pi identities period vertical asymptotes 
Transforming Secant and Cosecant
Trigonometry Trigonometric Functions
How graph the secant function using five key points.
even functions the add pi identities secant cosine vertical asymptotes period periodicity 
Continuity
Calculus Limits and Continuity
How to determine whether a function f(x) is continuous at a particular point x=a.
limits definition of a function continuous at a point domain of a function 
(x,y) Coordinates and Plotting Points
PreAlgebra Graphing in Two Dimensions
Vocabulary of origin, axes, quadrants, and carteesian coordinates