shortest distance to a line 97 videos
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Graphing Equations by Making a Table of Values
Pre-Algebra Graphing in Two Dimensions
Graphing a line by making a table of values
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Rays
Geometry Geometry Building Blocks
How to identify, define, and label rays and opposite rays.
ray line endpoint opposite rays -
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 -
Circumference
Geometry Circles
How to calculate the circumference of a circle.
circumference pi distance radius diameter ratio -
Speed-Instantaneous Speed
Physics Linear and Projectile Motion
Understanding the differences between speed and instantaneous speed.
speed instantaneous speed distance time mechanics -
Instantaneous Velocity
Physics Linear and Projectile Motion
How to find instantaneous velocity.
instantaneous velocity changes in distance change in time -
Point-Slope Form of Linear Equations
Algebra Linear Equations and Their Graphs
How to write the equation of a line in point-slope form.
slope equation -
Comparing Fractions
Pre-Algebra Fractions and MIxed Numbers
Comparing fractions using < or > and ordering them on the number line
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Addition and Subtraction with Decimals
Pre-Algebra Decimals and Percents
Adding or subtracting decimals by vertically lining up the zeros
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Graphing One Variable Inequalities
Pre-Algebra Solving Equations and Inequalities
Graphing one variable inequalities on a number line
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Alternate Interior Angles
Geometry Reasoning, Diagonals, Angles and Parallel Lines
How to define alternate interior angles and their special properties.
parallel lines angles congruence interior transversal -
Alternate Exterior Angles
Geometry Reasoning, Diagonals, Angles and Parallel Lines
How to define alternate exterior angles and their special properties.
parallel lines angles congruence exterior transversal -
Same Side Interior and Same Side Exterior Angles
Geometry Reasoning, Diagonals, Angles and Parallel Lines
How to describe same side interior and same side exterior angles and their special properties.
parallel lines angles congruence interior exterior transversal -
The Definition of the Derivative
Calculus The Derivative
How to define the derivative of a function at a point x=a.
average rate of change slope secant line instantaneous rate of change tangent line limits derivative difference quotient -
Locus and Definition of a Circle and Sphere
Geometry Circles
How to define a circle and a sphere using the word locus.
locus set of points distance plane circle sphere given -
The Cosine Addition Formulas
Trigonometry Advanced Trigonometry
How to derive the cosine of a difference formula.
the unit circle the law of cosines the distance formula cosine of a difference formula -
The Cosine Addition Formulas
Precalculus Advanced Trigonometry
How to derive the cosine of a difference formula.
the unit circle the law of cosines the distance formula cosine of a difference formula -
Introduction to the 3D Coordinate System
Precalculus Vectors and Parametric Equations
How to define the components and length of a position vector in three dimensions.
axes coordinates position vector components magnitude length distance origin
