• Piecewise Functions - Problem 1

How to graph a two part piecewise function.
• The Inverse Sine Function - Concept

How to restrict the domain of sine so it will have an inverse function.
• Introduction to Rational Functions - Problem 3

Math›Precalculus›Polynomial and Rational Functions
How to identify the vertical asymptotes of a rational function.
• Graph of Logarithmic Functions - Problem 2

Math›Precalculus›Exponential and Logarithmic Functions
How to graph a logarithmic function.
• Solving Radical Equations - Problem 6

Solving equations with two radicals and checking both domains for extraneous solutions.
Tags:
• The Inverse Cosine Function - Concept

How to restrict the domain of cosine so it will have an inverse function.
• The Inverse Tangent Function - Concept

How to restrict the domain of tangent so it will have an inverse function.
• The Inverse Tangent Function - Concept

How to restrict the domain of tangent so it will have an inverse function.
• Piecewise Functions - Problem 2

How to graph a three part piecewise function.
• The Inverse Sine Function - Concept

How to restrict the domain of sine so it will have an inverse function.
• The Inverse Cosine Function - Concept

How to restrict the domain of cosine so it will have an inverse function.
• Continuity - Problem 1

Math›Calculus›Limits and Continuity
How to show that a function is discontinuous at a point x=a because it is not defined at a. Explanation of continuity.
• Continuity - Problem 2

Math›Calculus›Limits and Continuity
How to show that a function is discontinuous at a point x=a because the limit as x approaches a does not exist.
• Continuity - Problem 3

Math›Calculus›Limits and Continuity
How to show that a function is discontinuous at a point x=a because its limit and its value at x=a are different. Explanation of continuity.
• The Inverse Tangent Function - Problem 2

How to use apply the inverse identities for tangent.
• Continuous Functions - Problem 2

Math›Calculus›Limits and Continuity
How to show that rational functions are continuous functions.
• The Inverse Tangent Function - Problem 2

How to use apply the inverse identities for tangent.
• Relations and Determining Whether a Relation is a Function - Concept

Math›Algebra›Graphs and Functions
How to determine whether a relation is a function.
• Graph of Logarithmic Functions - Problem 2

Math›Algebra 2›Inverse, Exponential and Logarithmic Functions
How to graph a logarithmic function.
• Graphing a Rational Expression - Problem 5

Math›Algebra 2›Rational Expressions and Functions
Finding the discontinuities or domain restrictions of rational functions, including vertical asymptotes and holes.