# Math 18

Below are a few videos that I have made that correspond to some precalculus topics. There are also videos made by other instructors that correspond to topics on our Math 18 worksheets. More of these outside videos can be found at the website: mathispower4u.com. Another great website for math videos is patrickjmt.com.

### Videos I have made

Here are some videos I have made that may help you review.

Evaluating Trig functions for Acute Angles

### Tools for Limits (Parts 1-4)

- Graphing 9 Basic Functions
- The Domain and Range of 9 Basic Functions
- Symmetry Introduction: x-axis, y-axis, the origin
- Ex: Symmetry: x-axis, y-axis, the origin
- Ex: Graph an Absolute Value Function Using a Table of Values
- Ex: Graph a Square Root Function Using a Table of Values
- Ex: Graph a Quadratic Function Using a Table of Values
- Graphing Cubic Functions
- Ex: Graph a Cubic Function Using a Table of Values
- Graphing Nonlinear Functions
- Graphing the Basic Square Root Function
- Piecewise Defined Graph
- Ex: Determine Function Values for a Piecewise Defined Function
- Ex 1: Graph a Piecewise Defined Function
- Ex 2: Graph a Piecewise Defined Function
- Ex 3: Graph a Piecewise Defined Function
- Ex 1: Determine the Function From the Graph of a Piecewise Defined Function
- Ex 2: Determine the Function From the Graph of a Piecewise Defined Function
- Ex 1: Determine Asymptotes and Graph a Rational Function
- Ex 2: Determine Asymptotes and Graph a Rational Function
- Ex 3: Determine Asymptotes and Graph a Rational Function
- Graphing Rational Functions

Ex 1: Graphing Rational Functions

Ex 2: Graphing Rational Functions

Ex 3: Graphing Rational Functions

Ex 4: Graphing Rational Functions

Ex 5: Graphing Rational Functions

Ex 6: Graphing Rational Functions

- Logarithms: Properties of Logarithms – Part 1
- Logarithms: Properties of Logarithms – Part 2
- Properties of Logarithms
- Solving Logarithmic Equations – Example 1
- Solving Logarithmic Equations – Example 2

### Tools for Derivatives (Parts 1-6)

- The Difference Quotient – Example 1
- The Difference Quotient – Example 2
- Slope of a Line
- Equation of a Line: Point-Slope Form
- Graphing a Line Using a Point and Slope
- Factoring out a binomial
- Factoring out a binomial
- Factoring out a binomial (with fractions)
- Solving a Trigonometric Equation
- Solving a Trigonometric Equation
- Solving a Trigonometric Equation
- Solve Trigonometric Equations I
- Solve Trigonometric Equations II
- Solve Trigonometric Equations III
- Solve Trigonometric Equations IV
- Solve Trigonometric Equations V
- Solve Trigonometric Equations VI
- Evaluate Composite Functions from Graphs
- Determine Composite Function Values Using Table, Graph, and Function Rule
- Determine Composite Function Values Using Table, Graph, and Function Rule
- Find and Evaluate a Composition of Three Functions
- Decompose Functions
- Composite Function Values
- Composite Function Values
- Composition of Functions
- Find Composite Function Values
- Find Composite Function Values With Fractions
- Determine Composite Function Values Using Table, Graph, and Function Rule
- Determine Composite Function Values Using Table, Graph, and Function Rule
- Domain of a Composite Function
- Domain of a Composite Function
- Domain of a Composite Function
- Domain of a Composite Function
- Find a Composition of Functions Involving Rational Functions
- Domain of a Quotient and Composite Functions
- Domain of Composite Function From Graph
- Solve a Polynomial Inequality in Factored Form
- Solve a Polynomial Inequality in Factored Form
- Solving Quadratic Inequalities – The Basics
- Solving Quadratic Inequalities
- Solving Quadratic Inequalities – A Common Mistake
- Solving Quadratic Inequalities – Ex 1
- Solving Quadratic Inequalities – Ex 2
- Solving Quadratic Inequalities – Ex 3
- Rational Inequalities: Solving
- Solving a Rational Inequality – Ex 1
- Solving a Rational Inequality – Ex 2
- Solving a Rational Inequality – Ex 3
- Sine and Cosine Values in Radians Using Reference Triangles - Multiplies of pi/6 and pi/3

Sine and Cosine Values in Radians Using Reference Triangles - Multiplies of pi/4

Ex: Evaluate Basic Inverse Trig Expressions Involving Arccosine Using the Unit Circle

Ex: Evaluate Basic Inverse Trig Expressions Involving Arcsine Using the Unit Circle

Evaluate Inverse Cosine Expressions Using the Unit Circle (Nice Values)

Evaluate Inverse Sine Expressions Using the Unit Circle (Nice Values)

Evaluate Inverse Tangent Expressions Using the Unit Circle (Nice Values)

Evaluate Inverse Cosine Expressions Using the Reference Triangles

Expand Logarithms Using Properties of Logarithms (Expressions)

Ex 1: Expand Logarithmic Expressions

Ex 2: Expand Logarithmic Expressions