LINEAR RELATIONS & FUNCTIONS

• Functions
• Definition (uses Flash)
• Functions, Linear Functions, and Quadratic Functions--scroll down for information
• Pictures of f(f(x)) = x and f(f(f(x))) = x
• Functions, in general
• Functions and graphs
• Domain & Range
• Problems finding domains
• Domain and Range again
• Least Squares Regression Line
• Least Squares applet
• Least Squares Line plotter
• Curve Fitting (Go to Discussion:  Using Flash)
• Median-median line plotter
  
• Piecewise-defined Functions
• A good site for piecewise functions and composition of functions
• Another site for piecewise functions
• Explore graphing a piecewise function
• A problem to graph
• What is a piecewise function?
• Graphing a piecewise function
• Piecewise function plotter
  
• Squiggly Line Method for Solving Polynomial Inequalities
• Graphing Methods for Solving Inequalities -- good problems
• Absolute Value Inequalities
  
• Inequalities -- discussion and problems; includes absolute value inequalities
• Summaries and Review Problems: Functions & Graphs
• Review questions for finding equations of lines and circles, using the distance formula -- Go to Calculus Book I button, then Functions and Geometry, then Lines and Distance
• More Review Questions with solutions and explanations
  

Go to Precalculus Page
Go to Precalculus Lesson Page