Start typing, then use the up and down arrows to select an option from the list.

## Precalculus

Learn the toughest concepts covered in Precalculus with step-by-step video tutorials and practice problems by world-class tutors

## 2. Functions and Graphs

Graphs and Graphing Utilities

## Plotting Points in the Rectangular Coordinate System

4 videos
Graphs and Graphing Utilities

## Graphing an Equation Using the Point-Plotting Method

5 videos
Graphs and Graphing Utilities

## Understanding the Viewing Rectangle

3 videos

### VIDEOS3

Previous videos for
Next videos for
Graphs and Graphing Utilities

## Identifying Intercepts

7 videos
Graphs and Graphing Utilities

## Interpret Information Given by Graphs

1 video

### VIDEOS1

Previous videos for
Next videos for
Basics of Functions and Their Graphs

## Find the Domain and Range of a Relation

3 videos

### VIDEOS3

Previous videos for
Next videos for
Basics of Functions and Their Graphs

## Determine Whether a Relation is a Function

3 videos

### VIDEOS3

Previous videos for
Next videos for
Basics of Functions and Their Graphs

## Determine Whether an Equation Represents a Function

1 video

### VIDEOS1

Previous videos for
Next videos for
Basics of Functions and Their Graphs

## Evaluate a Function

4 videos

### VIDEOS4

Previous videos for
Next videos for
Basics of Functions and Their Graphs

## Graph Functions by Plotting Points

4 videos
Basics of Functions and Their Graphs

## Use the Vertical Line Test to Identify Functions

2 videos

### VIDEOS2

Previous videos for
Next videos for
Basics of Functions and Their Graphs

## Obtain Information About a Function From Its Graph

2 videos

### VIDEOS2

Previous videos for
Next videos for
Basics of Functions and Their Graphs

## Identifying the Domain and Range of a Function From Its Graph

2 videos

### VIDEOS2

Previous videos for
Next videos for
Basics of Functions and Their Graphs

## Identify Intercepts from a Function's Graph

3 videos
More on Functions and Their Graphs

## Identify Intervals on Which a Function Increases, Decreases, or Is Constant

3 videos
More on Functions and Their Graphs

## Use Graphs to Locate Relative Maxima or Minima

3 videos

### VIDEOS3

Previous videos for
Next videos for
More on Functions and Their Graphs

## Test for Symmetry

1 video

### VIDEOS1

Previous videos for
Next videos for
More on Functions and Their Graphs

## Identifying Even or Odd Functions and Recognize Their Symmetries

3 videos

### VIDEOS3

Previous videos for
Next videos for
More on Functions and Their Graphs

## Understand and Use Piecewise Functions

4 videos
More on Functions and Their Graphs

## Find and Simplify a Function's Different Quotient

5 videos
Linear Functions and Slope

## Calculate a Line's Slope

2 videos

### VIDEOS2

Previous videos for
Next videos for
Linear Functions and Slope

## Write the Point-Slope Form of the Equation of a Line

4 videos
Linear Functions and Slope

## Write and Graph the Slope-Intercept Form of the Equation of a Line

6 videos
Linear Functions and Slope

## Graph Horizontal and Vertical Lines

4 videos
Linear Functions and Slope

## Recognize and Use the General Form of a Line's Equation

2 videos

### VIDEOS2

Previous videos for
Next videos for
Linear Functions and Slope

## Use Intercepts to Graph the General Form of a Line's Equation

3 videos

### VIDEOS3

Previous videos for
Next videos for
Linear Functions and Slope

## Model Data with Linear Functions and Make Predictions

3 videos

### VIDEOS3

Previous videos for
Next videos for
More on Slope

## Find Slopes and Equations of Parallel and Perpendicular Lines

3 videos

### VIDEOS3

Previous videos for
Next videos for
Transformations of Functions

## Recognizing Graphs of Common Functions

7 videos
Transformations of Functions

## Use Vertical Shifts to Graph Functions

2 videos

### VIDEOS2

Previous videos for
Next videos for
Transformations of Functions

## Use Horizontal Shifts to Graph Functions

2 videos

### VIDEOS2

Previous videos for
Next videos for
Transformations of Functions

## Use Reflections to Graph Functions

4 videos
Transformations of Functions

## Use Vertical Stretching and Shrinking to Graph Functions

3 videos
Transformations of Functions

## Use Horizontal Stretching and Shrinking to Graph Functions

1 video

### VIDEOS1

Previous videos for
Next videos for
Combinations of Functions, Composite Functions

## Find the Domain of a Function

8 videos
Combinations of Functions, Composite Functions

## Combine Functions Using the Algebra of Function

2 videos

### VIDEOS2

Previous videos for
Next videos for
Combinations of Functions, Composite Functions

## Form Composite Functions

2 videos

### VIDEOS2

Previous videos for
Next videos for
Combinations of Functions, Composite Functions

## Determine Domains for Composite Functions

5 videos
Combinations of Functions, Composite Functions

## Write Functions as Compositions

4 videos
Inverse Functions

## Verify Inverse Functions

2 videos

### VIDEOS2

Previous videos for
Next videos for
Inverse Functions

## Find the Inverse of a Function

6 videos
Inverse Functions

## Determine if a Function Has an Inverse Function (Using Horizontal Line)

4 videos

### VIDEOS4

Previous videos for
Next videos for
Inverse Functions

## Graph Inverse Function (use one-to-One Function graph)

2 videos

### VIDEOS2

Previous videos for
Next videos for
Inverse Functions

## Find the Inverse of a Function and Graph Both Functions

3 videos

### VIDEOS3

Previous videos for
Next videos for
Distance and Midpoint Formulas, Circles

## Find the Distance Between Two Points

3 videos
Distance and Midpoint Formulas, Circles

## Find the Midpoint of a Line Segment

5 videos
Distance and Midpoint Formulas, Circles

## Center and Radius of a Circle Whose Equation Is in Standard Form

3 videos
Distance and Midpoint Formulas, Circles

## Convert the General Form of a Circle's Equation to Standard Form

3 videos
Modeling with Functions

## Construct Functions from Formulas

5 videos
Modeling with Functions

5 videos