# points on a line   122 videos

• #### Midpoint Formula

##### Algebra 2Graphs of Linear Equations

How to find the midpoint of two points.

midpoint formula
• #### Graphing Equations by Making a Table of Values

##### Pre-AlgebraGraphing in Two Dimensions

Graphing a line by making a table of values

• #### Constructing the Incenter

##### GeometryConstructions

How to construct the incenter using a compass and straightedge.

point of concurrency angle bisectors equidistant
• #### Constructing the Orthocenter

##### GeometryConstructions

How to construct the orthocenter of a triangle.

point of concurrency orthocenter altitude construction
• #### Definitions and Applications of Absolute Value

##### AlgebraAbsolute Value

What is absolute value?

absolute value number line distance
• #### Rays

##### GeometryGeometry Building Blocks

How to identify, define, and label rays and opposite rays.

ray line endpoint opposite rays
• #### Slope

##### Algebra 2Graphs of Linear Equations

How to find the slope between two points.

slope formula slope
• #### Finding an Inverse Graphically

##### Algebra 2Inverse, Exponential and Logarithmic Functions

How to graph the inverse of a function using points.

finding an inverse graphically switch x and y flip over y=x
• #### Converting from Rectangular Coordinates to Polar

##### PrecalculusPolar Coordinates and Complex Numbers

How to convert the rectangular coordinates of a point into polar coordinates.

polar coordinates rectangular coordinates Pythagorean theorem sine cosine tangent
• #### Graphing Polar Equations

##### PrecalculusPolar Coordinates and Complex Numbers

How to sketch a simple polar curve by plotting points.

polar graph polar equation
• #### Evaluating Limits Algebraically, Part 2

##### CalculusLimits and Continuity

How to evaluate the limit of a function at points where it is not continuous.

limits definition of continuous function domain of a function rational functions factoring polynomials holes
• #### Optimization Using the Closed Interval Method

##### CalculusApplications of the Derivative

How to evaluate the limit of a function at points where it is not continuous.

• #### Vapor Pressure Lowering

##### ChemistryChemical Solutions

Understanding the colligative property of solutions that elevates boiling point.

vapor pressure lowering
• #### Comparing Fractions

##### Pre-AlgebraFractions and MIxed Numbers

Comparing fractions using < or > and ordering them on the number line

• #### Addition and Subtraction with Decimals

Adding or subtracting decimals by vertically lining up the zeros

• #### Graphing One Variable Inequalities

##### Pre-AlgebraSolving Equations and Inequalities

Graphing one variable inequalities on a number line

• #### Constructing the Circumcenter

##### GeometryConstructions

How to construct the circumcenter using a compass and straightedge.

point of concurrency perpendicular bisectors equidistant circumscribed construction
• #### Rotational Symmetry

##### GeometryTransformations

How to define rotational symmetry and identify the degree of rotational symmetry of common regular polygons.

symmetry rotation point symmetry image equilateral triangle
• #### Find an Equation for the Sine or Cosine Wave

##### TrigonometryTrigonometric Functions

How to identify the graph of a stretched cosine curve.

sine cosine period amplitude intercepts turning points
• #### Find an Equation for the Sine or Cosine Wave

##### PrecalculusTrigonometric Functions

How to identify the graph of a stretched cosine curve.

sine cosine period amplitude intercepts turning points