Introduction to Functions
Connect inputs to outputs with functions.
Finding the Rule
Word Functions
Time Functions
Repeating Outputs
Deducing the Rule
Level Review
Numeric Rules
Writing Rules
Conditional Rules
Deducing Numeric Rules
Level Review
Graphing Linear Functions
Graphing Squared Functions
Graphing Absolute Value
Graphing Without an Equation
Interpreting Graphed Functions
Level Review
Function Requirements
Vertical Line Test
Valid Functions
Valid Intervals
Level Review
Discrete Functions
Depreciation Functions
Multi-Part Functions
Periodic Functions
Level Review
Piecewise Functions
Discontinuities
Plotting Points
Plotting Piecewise Functions
Building Piecewise Functions
Level Review
Course description
We'll start by looking at a wide range of functions applied to numbers, strings of text and real world objects. We'll then explore properties of a wide range of numeric functions in the coordinate plane.
Topics covered
- Calculating the output of a function.
- Deducing a function rule from inputs and outputs.
- Function notation.
- Functions on the coordinate plane.
- Discrete and continuous functions.
- Interpreting function graphs.
- Piecewise functions.
- Domain and range.
Prerequisites and next steps
Before starting this course you should have familiarity with the coordinate plane, basic algebra and linear relationships of the form y=mx + c.